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MCQ Questions for Class 12 Informatics Practices – Python Pandas Part 1

MCQ Questions /

Python Pandas Class 12 MCQ Questions Part 1

Question . 1.

To create an empty series object, you can use:

(a) p(d)Series(empty)
(b) p(d)Series(np.NaN)
(c) p(d)Series( )
(d) All of these
Answer:
(c) p(d)Series( )

MCQ Questions for Class 12 Informatics Practices – Python Pandas Part 1

Question 2.

To specify datatype int 16 for a series object,you can write:

(a) p(d)Series(data = array, dtype = int16)
(b) p(d)Series(data = array, dtype = numpy.int 16)
(c) p(d)Series(data= array.dtype = pandas.int 16)
(d) All of the above
Answer:
(b) p(d)Series(data = array, dtype = numpy.int16)

Question 3.

To get the number of dimensions of a series object, attribute is displaye(d)

(a) index
(b) size
(c) itemsize
(d) ndim
Answer:
(d) ndim

Question 4.

To get the size of the datatype of the items in series object, you can display attribute.

(a) index
(b) size
(c) itemsize
(d) ndim
Answer:
(c) itemsize

Question 5.

To get the number of elements in a series object, attribute may be use(d)

(a) index
(b) size
(c) itemsize
(d) ndim
Answer:
(b) size

Question 6.

To get the number of bytes of the series data, attribute is displaye(d)

(a) hasnans
(b) nbytes
(c) ndim
(d) dtype
Answer:
(b) nbytes

Question 7.

To check if the series object contains NaN values, attribute is displaye(d)

(a) hasnans
(b) n bytes
(c) n dim
(d) dtype
Answer:
(a) hasnans

Question 8.

To display third element of a series object S, you will write

(a) S(:3)
(b) S[2]
(c) S[3]
(d) S[:2]
Answer:
(b) 5(2]

Question 9.

To display first three elements of a series object S, you may write

(a) S(:3]
(b) 5(3]
(c) 5 (3rd]
(d) All of these
Answer:
(a) S(:3]

Question 10.

To display last five rows of a series object S, you may write

(a) head()
(b) head(5)
(c) tail()
(d) tail(5)
Answer:
(c) tail(), (d) tail(5)

Question 11.

Missing data in Pandas object is represented through:

(a) Null
(b) None
(c) Missing
(d) NaN
Answer:
(d) NaN

MCQ Questions for Class 12 Informatics Practices – Python Pandas Part 1

Question 12.

Given a Pandas series called SeQuestion uences, the command which will display the first 4 rows is

(a) print(SeQuestion uences.head(4))
(b) print (SeQuestion uences. Head(4))
(c) print(SeQuestion uences.heads(4)
(d) print(SeQuestion uences.Heads(4))
Answer:
(a) print(SeQuestion uences.head(4))

Question 13.

If a dataframe is created using a 2D dictionary, then the indexes/row labels are formed from

(a) dictionary’s values
(b) inner dictionary’s keys
(c) outer dictionary’s keys
(d) None of these
Answer:
(b) inner dictionary’s keys

Question 14.

If a dataframe is created using a 2D dictionary, then the column labels are formed from

(a) dictionary’s values
(b) inner dictionary’s keys
(c) outer dictionary’s keys
(d) None of these
Answer:
(c) outer dictionary’s keys

Question 15.

The axis 0 identifies a dataframe’s

(a) rows
(b) columns
(c) values
(d) datatype
Answer:
(a) rows

Question 16.

The axis 1 identifies a dataframe’s

(a) rows
(b) columns
(c) values
(d) datatype
Answer:
(b) columns

Question 17.

To get the number of elements in a dataframe attribute may be use(d)

(a) size
(b) shape
(c) values
(d) ndim
Answer:
(a) size

Question 18.

To get NumPy representation of a dataframe ……… attribute may be use(d)

(a) size
(b) shape
(c) values
(d) ndim
Answer:
(c) values

Question 19.

To get a number representing number of axes in a dataframe, ……….. attribute may be use(d)

(a) size
(b) shape
(c) values
(d) ndim
Answer:
(d) ndim

Question 20.

To get the transpose of a dataframe Dl, you can write

(a) D1.T
(b) D1. Transpose
(c) D1.Swap
(d) All of these
Answer:
(a) D1.T

Question 21.

To extract row/column from a dataframe,……….. function may be use(d)

(a) row( )
(b) column( )
(c) loc( )
(d) All of these
Answer:
(c) loc( )

MCQ Questions for Class 12 Informatics Practices – Python Pandas Part 1

Question 22.

To display the 3rd, 4th and 5th columns from the 6th to 9th rows of a dataframe DF,you can write

(a) DF.loc[6:9, 3:5]
(b) DF.loc[6:10, 3:6]
(c) DF.iloc(6:10, 3:6]
(d) DF.iloc[6:9, 3:5]
Answer:
(c) DF.iloc[6:10,3:6]

Question 23.

To change the 5th column’s value at 3rd row as 35 in dataframe DF, you can write

(a) DF(4, 6] = 35
(b) DF(3, 5] = 35
(c) DF.iat(4, 6] = 35
(d) DF.iat(3, 5] = 35 .
Answer:
(d) DF.iat(3, 5] = 35

Question 24.

Which among the following options can be used to create a dataframe in Pandas?

(a) A scalar value
(b) An ndarray
(c) A python diet
(d) All of these
Answer:
(d) All of these

Question 25.

Identify the correct statement:

(a) The standard marker for missing data in Pandas is NaN
(b) Series act in a way similar to that of an array
(c) Both (a) and (b)
(d) None of the above
Answer:
(c) Both (a) and (b)

Question 26.

To delete a column from a dataframe, you may use statement.

(a) remove
(b) del
(c) drop
(d) cancel
Answer:
(b) del

Question 27.

To delete a rowfrom a DataFrame.you may use……… statement.

(a) remove
(b) del
(c) drop
(d) cancel
Answer:
(c) drop

Question 28

……… is a popular data-science library of Python.

(a) numpy
(b) pandas
(c) Both (a) and (b)
(d) None of these
Answer:
(b) pandas

Question 29.

A ………… is a Pandas data structure that represents a ID array like object.

(a) dataframe
(b) vector
(c) series
(d) All of these
Answer:
(c) series

Question 30.

A is a Pandas data structure that represents ……… a 2D array like object.

(a) dataframe
(b) vector
(c) series
(d) All of these
Answer:
(a) dataframe

Question 31.

You can use numpy …… for missing dat(a)

(a) none
(b) no
(c) NaN
(d) None of these
Answer:
(c) NaN

MCQ Questions for Class 12 Informatics Practices – Python Pandas Part 1

Question 32.

To specify datatype for a series object …… argument is use(d)

(a) ctype
(b) atype
(c) ntype
(d) dtype
Answer:
(d) dtype

Question 33.

The function on series object returns total ……. elements in it including NaNs.

(a) gen( )
(b) len( )
(c) gen( )
(d) cen( )
Answer:
(b) len()

Question 34.

The function on series object returns only the count of non-NaN values in it.

(a) acount( )
(b) allcount( )
(c) count( )
(d) dcount( )
Answer:
(c) count( )

Question 35.

Series is mutable.

(a) non- value
(b) text
(c) numeric
(d) value
Answer:
(d) value

Question 36.

Series is not ……… mutable.

(a) size
(b) variable
(c) shape
(d) value
Answer:
(a) size

Question 37.

Dataframe is …….. mutable as well as ………..mutable.

(a) value, size
(b) size, value
(c) size, size
(d) value, value
Answer:
(b) size, value

Question 38.

In a dataframe, Axis = 1 represents the ……… elements.

(a) row
(b) record
(c) column
(d) None of these
Answer:
(c) column

Question 39.

To access values using row labels you can use DF

(a) loc
(b) voc
(c) doc
(d) toe
Answer:
(a) loc

Question 40.

To access individual value, you can use DF …….. using row/column index labels.

(a) in
(b) or
(c) more
(d) at
Answer:
(d) at

Question 41.

To access individual value, you can use DF ……. using row/column integer position.

(a) lot
(b) doc
(c) toe
(d) iat
Answer:
(d) iat

MCQ Questions for Class 12 Informatics Practices – Python Pandas Part 1

Question 42.

The rename() function requires argument ……… to make changes in the original dataframe.

(a) outplace()
(b) atplace
(c) inplace
(d) ofplace
Answer:
(c) inplace

Question 43.

Which of the following are modules/libraries in Python?

(a) NumPy
(b) Pandas
(c) Matplotlib
(d) All of these
Answer:
(d) All of these

Question 44.

NumPy stands for ……….

(a) Number Python
(b) Numerical Python
(c) Numbers in Python
(d) None of these
Answer:
(b) Numerical Python

Question 45.

Which of the following libraries allows to manipulate, transform and visualize data easily and efficiently?

(a) Pandas
(b) NumPy
(c) Matplotlib
(d) All of these
Answer:
(d) All of these

Question 46.

PANDAS stands for……….

(a) Panel Data Analysis
(b) Panel Data Analyst
(c) Panel Data
(d) Panel Dashboard
Answer:
(c) Panel Data

Question 47.

……… is an important library used for analysing dat(a)

(a) Math
(b) Random
(c) Pandas
(d) None of these
Answer:
(c) Pandas

Question 48.

Important data structure of pandas is/are

(a) series
(b) dataframe
(c) Both of the above
(d) None of these
Answer:
(c) Both of the above

Question 49.

Which of the following library in Python is used for plotting graphs and visualization?

(a) Pandas
(b) NumPy
(c) Matplotlib
(d) None of these
Answer:
(c) Matplotlib

Question 50.

Pandas series can have data types.

(a) float
(b) integer
(c) string
(d) All of these
Answer:
(d) All of these

MCQ Questions for Class 12 Informatics Practices – Python Pandas Part 1

Question 51

…….. is used when data is in Tabular Format.

(a) NumPy
(b) Pandas
(c) Matplotlib
(d) All of these
Answer:
(b) Pandas

Question 52.

Which of the following command is used to install pandas?

(a) pip install pandas
(b) install pandas
(c) pip pandas
(d) None of these
Answer:
(a) pip install pandas

Question 53.

A is a collection of data values and operations that can be applied to that dat(a)

(a) data structure
(b) dataframe
(c) table
(d) None of these
Answer:
(a) data structure

Question 54.

A is a one-dimensional array.

(a) dataframe
(b) series .
(c) Both of the above
(d) None of these
Answer:
(b) series

Question 55.

Which of the following statement is wrong?

(a) We can create Series from Dictionary in Python,
(b) Keys of dictionary become index of the series.
(c) Order of indexes created from Keys may not be in the same order as typed in dictionary.
(d) All are correct
Answer:
(d) All are correct

Question 56.

A Series by default have numeric data labels starting from

(a) 3
(b) 2
(c) 1
(d) 0
Answer:
(d) 0

Question 57.

The data label associated with a particular value of Series is called its

(a) Data value
(b) Index
(c) Value
(d) None of these
Answer:
(b) Index

Question 58.

Which of the following module is to be imported to create Series?

(a) NumPy
(b) Pandas
(c) Matplotlib
(d) None of these
Answer:
(b) Pandas

MCQ Questions for Class 12 Informatics Practices – Python Pandas Part 1

Question 59.

Which of the following function/method help to create Series?

(a) series( )
(b) 5eries( )
(c) createSeries( )
(d) None of these
Answer:
(b) Series( )

Question 60.

Write the output of the following:
>>> import pandas as pd
>>> seriesl = p(d)Series(10,20,30)
>>> print(seriesl)

(a) Output:
0 10
1 20
2 30
dtype: int64

(b) Output:
10
20
30
dtype: int64

(c) Output:
0
1
2
dtype: int64
(d) None of these

Answer:
(a) Output:
0 10
1 20
2 30
dtype: int64

Question 61.

When you print/display any series then the left most column is showing value.

(a) index
(b) data
(c) value
(d) None of these
Answer:
(a) index

Question 62.

How many values will be there in arrayl, if given code is not returning any error?>>> series4 = p(d)Series(arrayl, index = [“Jan”, “Feb”, “Mar”, “Apr”])

(a) 1
(b) 2
(c) 3
(d) 4
Answer:
(d) 4

Question 63.

Which of the following statement will create an empty series named “SI”?

(a) 51 = p(d)Series(None)
(b) 51 = p(d)5eries()
(c) Both of the above
(d) None of these
Answer:
(c) Both of the above

Question 64.

How many elements will be there in the series named “SI”? »> SI = p(d)Series(range(5)) >» print(Sl)

(a) 5
(b) 4
(c) 6
(d) None of these
Answer:
(a) 5

Question 65.

When we create a series from dictionary then the keys of dictionary become

(a) index of the series
(b) value of the series
(c) caption of the series
(d) None of these
Answer:
(a) index of the series

Question 66.

Write the output of the following:>>> Sl=p(d)Series(14, index = [‘a’, ‘b’, ‘c’]) >>> print(Sl)

(a) a 14
b 14
c 14
dtype: int64

(b) a 14
dtype: int64

(c) Error

(d) None of these

Answer:
(a) a 14
b 14
c 14
dtype: int64

MCQ Questions for Class 12 Informatics Practices – Python Pandas Part 1

Question 67.

Write the output of the following: >>>Sl=p(d)Series([14,7, index = [‘a’, ‘b’, ‘c’]) >>> print(Sl)

(a) a 14
b 7
c 7

(b) a 14
b 7
dtype: int64

(c) Error

(d) None of these
Answer:
(c) Error

Question 68.

Write the output of the following:
>>> Sl=p(d)Series([14,7,9] .index = range(l, 8,3)) >>> print(Sl)

(a) 14 1
7 4
9 7
dtype: int64

(b) 1 14
47
7 9
dtype: int64

(c) Error

(d) None of these
Answer:
(b) 1 14
47
79
dtype: int64

Question 69.

Which of the following code will generate the following output?
Jan 31
Feb 28
Mar 31 dtype: int64

(a) import pandas as pd
51 = p(d)Series(data = [31,28,31], index=[“Jan”,”Feb”,,,Mar”]) print(SI)

(b) import pandas as pd
S1 = p(d)Series((31,28,31], index=[“Jan”,”Feb”,”Mar”]) print(SI)

(c) Both of the above

(d) None of the above

Answer:
(c) Both of the above

Question 70.

Write the output of the following: import pandas as pd SI = p(d)Series(data = range(31, 2, -6), index = [x for x in “aeiou”]) print(Sl)

(a) a 31
e 25
i 19
o 13
u 7
dtype: int64

(b) a 31
e 25
i 19
dtype: int64

(c) Error

(d) None of these
Answer:
(a) a 31
e 25
i 19
o 13
u 7
dtype: int64

Question 71.

What type of error is returned by following code? import pandas as pd SI = p(d)Series(data = (31,2, -6), index = [7,9,3,2]) print(Sl)

(a) SyntaxError
(b) IndexError
(c) ValueError
(d) None of these
Answer:
(c) ValueError

Question 72.

Write the output of the following: import pandas as pd SI = p(d)Series(data – 2*(31,2,-6)) print(Sl)

(a) 0 31
12
2-6
dtype: int64

(b) 0 31
12
2-6
3 31
4 2
dtype: int64

(c) 0 31
12
2-6
3 31
4 2
5 -6
dtype: int64

(d) 0 31
12
2-6
3 31
dtype: int64

Answer:
(d) 0 31
12
2-6
3 31
dtype: int64

Question 73.

We can imagine a Pandas series as a …….. spreadsheet.

(a) column
(b) cell
(c) table
(d) None of these
Answer:
(a) column

Question 74.

We can assign user-defined labels to the index of the series

(a) True
(b) False
(c) Error
(d) None of these
Answer:
(a) True

MCQ Questions for Class 12 Informatics Practices – Python Pandas Part 1

Question 75.

Write the output of the following: import pandas as pd series2 = p(d)Series([“Kavi7Shyam7Ravi”], index=[3,5 print(series2 > “S”)

(a) 3 False
5 False
1 False
dtype: bool

(b) 3 False
5 False
1 False
dtype: bool

(c) 3 True
5 True
1 True
dtype: bool

(d) None of these

Answer:
(b) 3 False
5 False
1 False
dtype: bool

MCQ Questions for Class 12 Informatics Practices with Answers

MCQ Questions for Class 12 Informatics Practices – Python Pandas Part 1 Read More »

NCERT Solutions for Class 8 Maths

NCERT Solutions for Class 8 Maths | CBSE Class 8th Chapter Wise Maths Solutions

CBSE Class 8 /

Maths is a subject that you need at some point or the other in your day-to-day lives or in your higher studies irrespective of the stream you choose. You can get a strong grip on the subject of Maths by using the NCERT Solutions for Class 8 Maths included on our web page.  Our NCERT Solutions for Class 8th Maths covers all the questions in the NCERT Textbooks as per the latest CBSE Board.

Preparing from Exams using the NCERT Solutions for 8th Class Maths will give students an extra edge in their preparation. CBSE Class 8 Maths Solutions by experts covers exercise-wise questions along with detailed explanations for all of them making it easy for you to understand.  Those who are looking for Detailed and Accurate Chapter Wise NCERT Solutions Class 8 Maths can get them all for free. Download the 8th Grade NCERT Solutions of Maths and use them offline too as per your convenience.

Chapterwise Class 8 Maths NCERT Solutions | NCERT Solutions of Class 8 Maths

Class 8 Maths NCERT Solutions Chapter Wise provided can be quite useful for students while practicing their math problems. They can quickly resolve their doubts and enhance their math skills. You can revise the entire Class 8 Maths Syllabus using these NCERT Maths Textbook Solutions. All you need to do is simply click on the quick links available here and prepare the respective chapter you wish to learn in no time. Refer to our MCQ Questions for Class 8 Maths with Answers, Notes on the Same to clear your doubts.

NCERT Solutions for Class 8th Maths

Class 8 Maths Chapter 1 Rational Numbers

Learn Properties related to Real Numbers, Whole Numbers, Integers, Natural Numbers like associative, closure, independent, additive identity, multiplicative identity, etc. It also explains the concepts like Representation of Rational Numbers on Number Line, Searching for Rational Numbers between Two Rational Numbers. Our NCERT Solutions of Class 8th Maths will cover all the Exercise Questions for Ex 1.1, Ex 1.2, explained clearly to help you out in your preparation.

Class 8 Maths Chapter 2 Linear Equations in One Variable

Chapter 2 Linear Equations in One Variable deals with equations with linear expressions in one variable. Get to know concepts of linear equations in one variable, reducing equations to a simpler form, applications, word problems related to one variable. You will find Solutions for all the Exercises 2.1, 2.2, 2.3, 2.4, 2.5 explained in Chapter 2.

Class 8 Maths Chapter 3 Understanding Quadrilaterals

Understanding Quadrilaterals provides students with knowledge on quadrilaterals. It further includes various polygons such as triangles, pentagon, hexagon, quadrilaterals. All the Chapter 3 Exercises (3.1-3.4) help students in understanding these shapes properly.

Class 8 Maths Chapter 4 Practical Geometry

Practical Geometry Chapter deals with the construction of quadrilateral given the known parameters. Cha 4 includes 5 Exercises and all of them, help in understanding different methods of constructing a quadrilateral. in ex 4.1, you will get to know how to construct a quadrilateral given a length of 4 sides, diagonal. Whereas the Second Exercise of Chapter 4 will get you acquainted with constructing quadrilaterals if two diagonals, 3 sides are given. Learn the Chapter to know more about constricting quadrilaterals in a detailed manner.

Class 8 Maths Chapter 5 Data Handling

Information that can be used in the analysis is known as Data. Chapter 5 deals with the representation and organization of data. Organizing data in a systematic manner is known as Data Handling. Chapter 5 of Maths NCERT Textbook will help you learn the representation of data diagrammatically using various forms such as pie graph, bar graph, pictogram, double bar graph, histogram, etc. In the course of the Chapter Data Handling Students will learn about Probability or Likelihood.

Class 8 Maths Chapter 6 Square and Square Roots

Square and Square Roots Chapter 6 makes you get acquainted with finding the square and the square root of a number. The chapter deals with interesting patterns that could be learned using square numbers, properties of square numbers, Square roots of decimals, Pythagorean triplets, finding the square of a number, finding square roots through various methods.

Class 8 Maths Chapter 7 Cube and Cube Roots

In Chapter 7 Cube and Cube Roots, you will find different strategies for finding the cubes and cube roots of a number. In addition, you will learn some interesting patterns for finding the cubes and cube roots of numbers. The two Exercises 7.1, 7.2 present in the chapter will assist you in learning the topics of cube and cube roots in depth.

Chapter Wise NCERT Solutions of Class 8 Maths

Class 8 Maths Chapter 8 Comparing Quantities

Comparing Quantities Chapter of Class 8 Maths deals with finding the rise or decrease of percentages, sales value, market value, discount, etc. In addition, it includes concepts on finding simple, compound interest on a half-yearly, quarterly, yearly basis. Exercises 8.1, 8.2, 8.3 will guide students in learning the Comparing Quantities Chapter in depth.

Class 8 Maths Chapter 9 Algebraic Expressions and Identities

Terms like Factors, Coefficients are explained in the Algebraic Expressions and Identities Chapter. Furthermore, you will learn the basics of monomial, polynomial, binomial, etc. The concept of Identity is covered in the chapter and all 5 exercises 9.1, 9.2. 9.3, 9.4, 9.5 will give you ample practice on the topics of algebraic expressions and identities.

Class 8 Maths Chapter 10 Visualizing Solid Shapes

All the Ex 10.1, Ex 10.2, Ex 10.3 present in Chapter 10 of Class 8 Maths will help students visualize solid shapes in different dimensions. The chapter can be quite interesting as it deals with viewing 3-D Shapes, Understanding Faces, Edges, Vertices, etc. You will get to know the Euler’s Formula, which states that F + V – E = 2 in which F is the Faces, E is the Edges, V is the Vertices.

Class 8 Maths Chapter 11 Mensuration

Students of Class 8 will learn about finding the area and perimeter of closed figures such as quadrilaterals. In addition, you will learn about the surface area and volume of different shapes such as cube, cuboid, and cylinder.

Class 8 Maths Chapter 12 Exponents and Powers

In Ch 12 Exponents and Powers, students will learn about laws of exponents, powers with negative exponents,  comparison of extremely large numbers with small numbers, use of exponents to express the numbers in standard form. 2 Exercises 12.1, 12.2 will help you learn the topics of Exponents and Powers in detail.

Class 8 Maths Chapter 13 Direct and Inverse Proportions

Chapter 13 deals with questions on direct and inverse proportion. Two quantities x and y are said to be in direct proportion if they increase in a way that their ratios remain constant then it is called direct proportion. On the Other hand, two quantities x and y are in inverse proportion if an increase in x results in a decrease in y and the product of their corresponding values remain constant.

Class 8 Maths Chapter 14 Factorization

In this Chapter 14, you will learn about the topics factors of natural numbers and algebraic expressions, factorization using identities, factorization by regrouping terms. Furthermore, you will learn about the division of algebraic expressions like the division of a monomial by a monomial, division of a polynomial by a monomial.

Class 8 Maths Chapter 15 Introduction to Graphs

Students will learn about representing data using various types of graphs. Graphs include bar graphs, line graphs, pie graphs, and linear graphs. In addition, you will be familiar with how to plot a point and coordinate on the graph. All the Exercises 15.1-15.3 will assist you in understanding the concept of Graphs.

Class 8 Maths Chapter 16 Playing with Numbers

By now you might have come across various types of numbers such as whole numbers, natural numbers, integers, and rational numbers. Alongside you will get to know properties of numbers like factors, multiples and finding the relation between them, etc. It even includes the tests of divisibility and Ex 16.1, Ex 16.2 covers topics in Playing with Numbers quite easily.

FAQs on NCERT Solutions of Class 8 Maths PDF Download

1. Where do I get Chapter Wise NCERT Solutions of Class 8th Maths in PDF?

You can get Chapter Wise NCERT Solutions of Class 8th Maths in PDF Format on our page.

2. Which is the Best Mathematics Book for CBSE Class 8?

Of all the Books out there NCERT Books for Class 8 Maths is the best option as they are designed keeping in mind the CBSE(https://www.cbse.gov.in/) Board Curriculum and gives you a complete overview of the chapters.

3. How to Score Good Marks in the Maths Class 8 CBSE Exam?

You can score good marks in the Maths Class 8 CBSE Exam by regularly practicing the Class 8 Maths NCERT Solutions as practice is the only key for success.

4. Where can I get the Solutions for the NCERT Books of Class 8th?

You can get the Solutions for the NCERT Books of Class 8th all on NCERTSolutions.guru a trusted portal for all your needs.

Final Words

We as a team wish the above-furnished information on NCERT Solutions for Class 8 Maths makes it easy for you to prepare during your exams. If you have any questions left unanswered then don’t hesitate to contact us via the comment section and we will guide you as the soonest possibility.

NCERT Solutions for Class 8 Maths | CBSE Class 8th Chapter Wise Maths Solutions Read More »

Extra Questions for Class 8 Science with Answers

CBSE Class 8 /

Students can crack the CBSE Class 8 Science Exam easily by taking help from the Extra Questions for Class 8 Science with Answers. We have covered all the Class 8 Science Extra Questions from the NCERT Textbooks. Detailed are given in simple and easy to understand language. Feel Confident in the board exam by beginning your preparation months ahead. You can download the NCERT Class 8 Science Extra Questions free of cost from here.

NCERT Class 8 Science Extra Questions with Answers

NCERT Extra Questions for Class 8 Science are solved by experts and will guide students in the right direction. Students can get how to tackle different questions easily by solving the NCERT Solutions for Class 8 Science Extra Questions on a regular basis. We have curated the Science Extra Questions Class 8 PDF through the direct links existing below.

  1. Crop Production and Management Class 8 Extra Questions
  2. Microorganisms: Friend and Foe Class 8 Extra Questions
  3. Synthetic Fibres and Plastics Class 8 Extra Questions
  4. Materials: Metals and Non-Metals Class 8 Extra Questions
  5. Coal and Petroleum Class 8 Extra Questions
  6. Combustion and Flame Class 8 Extra Questions
  7. Conservation of Plants and Animals Class 8 Extra Questions
  8. Cell Structure and Functions Class 8 Extra Questions
  9. Reproduction in Animals Class 8 Extra Questions
  10. Reaching the Age of Adolescence Class 8 Extra Questions
  11. Force and Pressure Class 8 Extra Questions
  12. Friction Class 8 Extra Questions
  13. Sound Class 8 Extra Questions
  14. Chemical Effects of Electric Current Class 8 Extra Questions
  15. Some Natural Phenomena Class 8 Extra Questions
  16. Light Class 8 Extra Questions
  17. Stars and the Solar System Class 8 Extra Questions
  18. Pollution of Air and Water Class 8 Extra Questions

Hope the knowledge provided regarding the Extra Questions for Class 8 Science with Answers has helped you to a possible extent. For more info feel free to reach us and we will guide you at the earliest possibility. Stay connected to our site to avail the latest updates on Extra Questions for Various Classes instantly.

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NCERT Solutions for Class 12 Chemistry

NCERT Solutions for Class 12 Chemistry in Hindi Medium and English Medium | CBSE 12th Class Chemistry Book Solutions

CBSE Class 11 /

NCERT Solutions of Class 12 Chemistry help students to learn complex topics too with ease. All the NCERT Book Solutions for 12th Class Chemistry given in a systematic manner make it easy for you to grasp the concepts as well as retain them for a long time. Chemistry Class 12th NCERT Solutions are given after extensive research keeping in mind the Latest CBSE Syllabus Guidelines. You can use any of our online or offline NCERT Solutions for Class 12 Chemistry and prepare accordingly.

NCERT Solutions for Class 12 Chemistry in Hindi Medium and English Medium (रसायन विज्ञान)

Students can access the chapterwise NCERT Solutions of Class 12th Chemistry through the quick links available. Just click on the respective chapter you wish to access and learn the topics within.

Class 12 Chemistry NCERT SolutionsClass 12 Chemistry NCERT Solutions in Hindi Medium
Class 12 Chemistry Chapter 1 The Solid Stateठोस अवस्था
Class 12 Chemistry Chapter 2 Solutionsविलयन
Class 12 Chemistry Chapter 3 Electro Chemistryवैद्युत रसायन
Class 12 Chemistry Chapter 4 Chemical Kineticsरासायनिक बलगतिकी
Class 12 Chemistry Chapter 5 Surface Chemistryपृष्ठ रसायन
Class 12 Chemistry Chapter 6 General Principles and Processes of Isolation of Elementsतत्त्वों के निष्कर्षण के सिद्धान्त एवं प्रक्रम
Class 12 Chemistry Chapter 7 The p Block Elementsp-ब्लॉक के तत्त्व
Class 12 Chemistry Chapter 8 The d and f Block Elementsd-एवं f-ब्लॉक के तत्त्व
Class 12 Chemistry Chapter 9 Coordination Compoundsउपसहसंयोजन यौगिक
Class 12 Chemistry Chapter 10 Haloalkanes and Haloarenesहैलोऐल्केन तथा हैलोऐरीन
Class 12 Chemistry Chapter 11 Alcohols Phenols and Ethersऐल्कोहॉल, फीनॉल एवं ईथर
Class 12 Chemistry Chapter 12 Aldehydes Ketones and Carboxylic Acidsऐल्डिहाइड, कीटोन एवं कार्बोक्सिलिक अम्ल
Class 12 Chemistry Chapter 13 Aminesऐमीन
Class 12 Chemistry Chapter 14 Biomoleculesजैव-अणु
Class 12 Chemistry Chapter 15 Polymersबहुलक
Class 12 Chemistry Chapter 16 Chemistry in Everyday Lifeदैनिक जीवन में रसायन

Download NCERT Solutions Class 12 Chemistry PDF

NCERT Solutions of Class 12 Chemistry includes overall information on practical chemistry. Students can access the Chemistry NCERT Class 12 having a variety of topics in the 12th Class CBSE Syllabus all explained in a detailed way. Keep the Class 12th Chemistry NCERT Book Solutions free downloadable PDFs handy and clear all your doubts in no time.

Be prepared for your CBSE Board Exams by solving the questions from the NCERT Class 12th Chemistry Solutions on a frequent basis. You can get other preparation resources like MCQ Questions for Class 12 Chemistry with Answers, CBSE Class 12 Chemistry Notes, etc.

Class 12th NCERT Book Solutions Chapters Details

Have a glimpse of the Chemistry Class 12 Syllabus beforehand to be aware of the topics. They are explained here for your reference

Chapter 1 The Solid State

In this chapter, the Classification of solids based on different binding forces: molecular, ionic, covalent, and metallic solids, amorphous and crystalline solids (elementary idea) are explained. In addition to the solids classification, you will become familiar with the Unit cell in two-dimensional and three-dimensional lattices, packing in solids, packing efficiency, calculation of density of unit cell, voids, point defects, number of atoms per unit cell in a cubic unit cell.

Chapter 2 Solutions

Chapter 2 Solutions in Class 12 Chemistry deals with the topics like Types of solutions, the solubility of gases in liquids, expression of concentration of solutions of solids in liquids, solid solutions, colligative properties – the relative lowering of vapour pressure. Furthermore, you will learn about Raoult’s law, the elevation of boiling point, osmotic pressure, depression of freezing point, determination of molecular masses using colligative properties.

Chapter 3 Electrochemistry

Ch 3 Electrochemistry includes concepts like Redox reactions, Nernst equation and its application to chemical cells, standard electrode potential, EMF of a cell, Relation between Gibbs energy change and EMF of a cell. In addition to these, you will know about the conductance in electrolytic solutions, variations of conductivity with concentration, specific and molar conductivity, electrolysis, Kohlrausch’s Law.

Chapter 4 Chemical Kinetics

Topics covered in CBSE Class 12 Chemistry Chapter 4 include Rate of a reaction, factors affecting rate of reaction, catalyst, concentration, temperature. Furthermore, you will know the concepts like order and molecularity of a reaction, integrated rate equations and half-life, rate law and specific rate constant.

Chapter 5 Surface Chemistry

CBSE Class 12 Chemistry Chapter 5 includes topics like physisorption and chemisorption, factors affecting adsorption of gases on solids, the distinction between true solutions, colloids and suspension.  Students will become acquainted with the concepts like lyophilic, lyophobic,  properties of colloids, multi-molecular and macromolecular colloids, Brownian movement, electrophoresis, Tyndall effect, coagulation.

Chapter 6 General Principles and Processes of Isolation of Elements

In this chapter concept of metallurgy is discussed, reactions of metal extraction, fundamental principles and developments that occur in this field. Know which is the most abundant metal on earth’s crust by weight. Know about the dressing of ore i.e. how to clean the ore by removing the particles such as clay, sand, etc.

Chapter 7 The p-Block Elements

Elements belonging to Groups 13, 14, 15, 16, 17, 18 are known as p-block elements. Learn about the p-block elements history, their existence in three physical states like metal, non-metal, metalloids.

Chapter 8 The d- and f-Block Elements

Chapter 8 of Class 12 Chemistry has information on electronic configuration, occurrence and characteristics of transition metals, general trends in properties of the first-row transition metals. Apart from these, you will get an idea of concepts such as metallic character, ionization enthalpy, ionic radii, oxidation states, colour, catalytic property, interstitial compounds, magnetic properties, alloy formation, oxidation states and lanthanoid contraction and its consequences, Electronic configuration, etc.

Chapter 9 Coordination Compounds

In this chapter, you will know about the topics like Coordination compounds, Introduction, coordination number, ligands, magnetic properties and shapes, colour. Apart from these topics, you will get acquainted with topics like the IUPAC nomenclature of mononuclear coordination compounds, Werner’s theory, Bonding, VBT, and CFT.

Chapter 10 Haloalkanes and Haloarenes

Get to know the Haloalkanes Nomenclature, physical and chemical properties, nature of C–X bond, optical rotation mechanism of substitution reactions. Furthermore, you will know the Haloarenes: Nature of C–X bond, substitution reactions.

Chapter 11 Alcohols, Phenols and Ethers

In this Chapter 11, you will know the concepts like

Alcohols: Nomenclature, methods of preparation, identification of primary, secondary and tertiary alcohols, physical and chemical properties, mechanism of dehydration.
Phenols: Nomenclature, methods of preparation, acidic nature of phenol, physical and chemical properties, uses of phenols, electrophilic substitution reactions.
Ethers: Nomenclature, methods of preparation, uses, physical and chemical properties.

Chapter 12 Aldehydes, Ketones and Carboxylic Acids

In this Chapter 12 students will be familiar with topics like Aldehydes and Ketones: Nomenclature, nature of carbonyl group, physical and chemical properties, methods of preparation, the reactivity of alpha hydrogen in aldehydes, mechanism of nucleophilic addition, uses.
Carboxylic Acids: Nomenclature, methods of preparation, acidic nature, physical and chemical properties, uses.

Chapter 13 Amines

Students can find the topics Amines: Nomenclature, structure, classification, physical and chemical properties, methods of preparation, identification of primary, secondary and tertiary amines, uses.

Chapter 14 Biomolecules

Chapter 14 deals with the concepts of Carbohydrates and their Classification (aldoses and ketoses), monosaccharides (glucose and fructose), D-L configuration Proteins, Elementary idea of amino acids, peptide bond, polypeptides, proteins, the structure of proteins, denaturation of proteins, Nucleic Acids and their Classification like DNA and RNA

Chapter 15 Polymers

Chapter 15 has topics monomer, polymer and polymerisation, classification of polymers based on the source, structure and polymerisation, different types of polymerisation such as addition polymerisation and condensation polymerisation are explained thoroughly in this chapter.

Chapter 16 Chemistry in Everyday Life

Know how Principles of Chemistry have benefitted humans in a lot of ways. Know about drugs and their classification, therapeutic action of different classes of drugs, drug target interaction, chemicals in food and cleansing agents.

Benefits of accessing Class 12 Chemistry NCERT Solutions

Class 12th Chemistry NCERT Solutions has several benefits and they are as follows

  • In-depth explanations are provided for all the topics so that it’s easy for you to understand.
  • Concise and to-the-point answers provided help you to frame better answers for scoring well in exams.
  • Top Class Subject Experts have created the NCERT Solutions of Class 12th Chemistry.
  • Downloadable PDF Files make it easy for you to prepare both online and offline.
  • Tips & Tricks used while explaining the topics in CBSE Class 12 Chemistry Syllabus help you remember the concepts efficiently.

CBSE Class 12 Marking Scheme for Academic Year 2021-22

CBSE Board divides the entire Class 12 Curriculum into 2 terms. We have outlined the unit-wise weightage for both terms so that you can prepare the important topics.

Term I CBSE Class 12 Syllabus Course Structure

Unit No.Name of UnitMarks
1Solid State10
2Solutions
3 p-Block Elements10
4Haloalkanes and Haloarenes15
5Alcohols, Phenols and Ethers
6Biomolecules
Total35

Term II CBSE Class 12 Syllabus Course Structure

Unit No.Name of UnitMarks
1Electrochemistry13
2Chemical Kinetics
3Surface Chemistry
4d-and f-Block Elements9
5Coordination Compounds
6Aldehydes, Ketones and Carboxylic Acids13
6Amines
Total35

FAQs on Class 12 Chemistry NCERT Book Solutions

1. Where do I get the Chapterwise NCERT Solutions of Class 12 Chemistry for free?

You can get the Chapterwise NCERT Solutions of Class 12 Chemistry for free on our page.

2. How to download the Class 12th Chemistry NCERT Solutions PDF?

You can download the Class 12th Chemistry NCERT Solutions PDF by simply tapping on the quick links available.

3. Does preparing from CBSE Class 12 NCERT Solutions for Chemistry Book help me score well?

Yes, preparing from CBSE Class 12 NCERT Solutions for Chemistry Book help me score well as they give you a glimpse of the concepts completely.

Conclusion

We wish the information existing on our page is genuine and true as far as my knowledge is concerned. If you have any doubts do ask us through the comment section so that we can get back to you. Keep in touch with our site to avail latest updates on NCERT Books, Classwise NCERT Solutions of different subjects, Previous Question Papers all in one place.

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NCERT Solutions for Class 8 English

NCERT Solutions for Class 8 English Honeydew & It So Happened | All Chapters Class 8th English NCERT Solutions

CBSE Class 8 /

NCERT Solutions for Class 8 English provided here covers both prose and poem as per the latest NCERT Class 8 English Syllabus. All the Questions provided here are extensively given from the NCERT Class 8 English Textbooks. Utilize them to the most, overcome all the challenges in your exams and score better grades in exams. Download the Class 8 English NCERT Solutions PDF without paying a single penny and improve your grammar as well as communication skills.

Since English is used everywhere in our day-to-day lives it is necessary that you have strong command over the language right from a young age. You can get all the basics using the NCERT Solutions for 8th Class English Honeydew & It So Happened provided as per the latest CBSE Syllabus Guidelines. Understanding and enriching subject knowledge becomes quite simple with our Chapterwise 8th Class NCERT Solutions for English.

NCERT Solutions for Class 8 English Honeydew

Candidates preparing for exams or who want to enhance their proficiency in the language can check out our Unitwise NCERT Solutions for Class 8 English. All the NCERT Solutions for 8th Class English Honeydew are given after extensive research and are given by the best industry experts.  You can use these quick resources as guidance whenever you need any help.

NCERT Solutions for Class 8 English Honeydew Prose

NCERT Solutions for Class 8 English Honeydew Poem

NCERT Solutions for Class 8 English It So Happened

NCERT Solutions for Class 8 English Supplementary It So Happened

Advantages of NCERT Class 8 English Solutions

Preparing from NCERT Solutions Class 8 English has several advantages when it comes to final exams. They are explained in the following way

  • Learn topics of Class 8 English much effectively using the NCERT Solutions for Class 8 English Honeydew & It So Happened.
  • You can have a customized learning experience as per your respective grasping power.
  • Simple and Easy to Understand Language used makes it easy for you to learn the concepts from a deeper level.
  • Interactive Exercises and Activities present provides the users a fun-filled learning experience.
  • Class 8th English NCERT Solutions are available in PDF format and you can download them for free and access them anytime you want.

FAQs on NCERT Solutions Class 8 English Free PDF Download

1.  What are the Best Books for English Grammar for Class 8?

Following NCERT Books can be great for learning English Grammar Skills. If you still have any time you can refer to additional textbooks such as Wren & Martin, and Others.

2. Where can I find the NCERT Solutions for Class 8 English?

You can find the NCERT Solutions for Class 8 English organized efficiently as per the latest syllabus trends on our page.

3. Where can I download CBSE NCERT Solutions Class 8 English?

You can refer to the NCERT Solutions for Class 8th English Honeydew and It So Happened both online & offline from our website NCERTSolutions.guru

Wrapping Up

We wish the info prevailing regarding NCERT Solutions for Class 8 English has helped you to the possible extent in resolving your doubts. For any help do drop us your queries through the comment box and we would respond to you at the earliest possibility. Keep connected to our site to avail latest updates on Subjectwise NCERT Solutions for Various Classes.

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NCERT Solutions for Class 8 Social Science in Hindi Medium

NCERT Solutions for Class 8 Social Science SST in Hindi Medium and English Medium | CBSE Class 8th Social Science History, Geography, Civics NCERT Solutions

Leave a Comment / CBSE Class 8 /

NCERT Solutions for Class 8th Social Science Hindi can be used either online or downloaded for free. NCERT Solutions for Class 8 Social Science in Hindi Medium are prepared for the academic session 2021-22. You need not worry about the accuracy of the NCERT Solutions provided here as they are given by experts. Revise the complete syllabus fastly using the handy resources for 8th Grade SST NCERT Solutions in Hindi PDF and make your preparation effective.

CBSE Class 8th Social Science SST NCERT Solutions in Hindi Medium and English Medium

Download the Chapter Wise NCERT Solutions of Social Science Geography, History, and Civics through the quick links available. Students will learn how to frame quality answers in exams by using the NCERT Solutions of Class 8 Social Science over here. Practice the 8th Std Social Science NCERT Solutions in Hindi Medium over here regularly and resolve your doubts clearly. You can answer complex questions too easily taking the help of the NCERT Social Science Solutions PDFs.

Class 8 Social Science NCERT Solutions in English Medium

For your comfort, we have given the Class 8th Social Science NCERT Solutions in English Medium. You will find NCERT Solutions of Class 8 Geography, Civics, History explained clearly covering all the topics for your reference. Simply tap on them and use them as per your need and prepare anywhere and anytime.

NCERT Solutions for Class 8 Social Science Geography: Resources and Development

NCERT Solutions for Class 8 Social Science History: Our Pasts – 3

NCERT Solutions for Class 8 Social Science Civics: Social and Political Life – 3

Class 8 Social Science NCERT Solutions in Hindi Medium

Ace up your preparation using the handy material for CBSE Class 8 Social Science NCERT Solutions in Hindi. Our NCERT Solutions of 8th Class Hindi covers all kinds of Worksheets, Exemplar Problems, Important Notes, MCQ Questions for Class 8 Social Science with Answers, etc. All the Chapters are explained clearly so that you can quickly use them for any doubts.

NCERT Solutions for Class 8 Social Science History: Our Pasts – III (इकाई 1: इतिहास – हमारे अतीत – III)

History is a subject that helps students understand the historical events of earlier ages. Class 8 Social Science History Part 2 in Hindi is curated by subject experts adhering to the latest trends. You can use them to clear your doubts quickly. We have designed these History Our Pasts – III NCERT Solutions in Hindi Medium keeping in mind different students grasping power.

NCERT Solutions for Class 8 Social Science Geography: Resources and Development (इकाई 2: भूगोल – संसाधन एवं विकास)

Being a student it is necessary to have a grip on the resources available in our environment. Get to know agriculture and its uses for the economic development of the country. Students will have a brief on pollution and the industries that cause it. All the 6 Chapters present in Geography cover numerous topics. You can rely on NCERT Solutions for Class 8 Social Science Geography Resources and Development present here to understand the questions in the Textbook clearly.

NCERT Solutions for Class 8 Social Science Civics: Social and Political Life – III (इकाई 3: नागरिक शास्त्र – सामाजिक एवं राजनीतिक जीवन – III)

Being a Citizen of India, students should get to know about the Indian Constitution. This is why students need to know about parliament and the laws we need to abide by. The major purpose behind including Civics in the Class 8 Social Science is to make them understand the law and social justice. NCERT Solutions Social Science Civics Social and Political Life – III will help students perform well in their exams as well as enhance their subject knowledge.

Class 8 Social Science NCERT Solutions in Hindi Medium

FAQs on NCERT Solutions for Class 8 Social Science in Hindi Medium

1. Where do I get Chapter Wise NCERT Solutions of Class 8th Social Science?

You can get Chapter Wise NCERT Solutions of Class 8th Social Science organized efficiently on our page.

2. How to download Social Science History Geography Civics NCERT Books Solutions?

You can download Social Science History Geography Civics NCERT Textbook Solutions by simply tapping on the quick links available and use them as per your comfort.

3. Does Preparing from Class 8th NCERT Solutions of Social Science help you score well in Exams?

Yes, Preparing from Class 8th NCERT Solutions of Social Science helps you score well in Exams and gives you a complete idea of the syllabus.

Conclusion

We as a team wish the knowledge shed has been helpful in clearing your doubts to the fullest possibility. If you have any doubts don’t hesitate to ask us via the comment box so that we can get back to you at the earliest possibility. Bookmark our site to avail latest updates on NCERT Books, Solutions, Previous Papers, etc.

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