# CBSE Important Questions

## Important Questions with Answers for CBSE Class 6 to 12 – All Subjects

The Central Board of Secondary Education (CBSE) is an academic body that can help students to achieve overall educational excellence. The important questions designed by the CBSE with answers can help students prepare for their sophomore years. Candidates will be able to build a strong base in subjects such as Mathematics and Science.

Students should note that the website of Extramarks will provide them with important questions through which they can score well in the examination. Additionally, candidates can also refer to the CBSE syllabus if they want to know the exact weightage and topics included in each subject.

## Chapter Wise Important Questions for CBSE Class 6 to 12 – Mathematics & Science (Physics, Chemistry, and Biology)

The examination system designed by CBSE is a fair exam system. It provides the students with a well-structured syllabus and marking scheme. Students can also refer to the CBSE sample papers to gain knowledge about the examination pattern.  Candidates will be able to learn the basic and the advanced concepts of each subject if they regularly follow the study materials. They should be consistent in their preparations and practice for the examinations. Extramarks will help the students with a list of important questions for subjects such as Mathematics and Science so that they can score well in the examinations.

The important questions are designed by the subject matter experts after researching the latest examination trends and CBSE sample papers. The questions that are repeated every year are also added to the list of the important questions to help the candidates. Applicants should regularly practise the numerical problems, long answers, short answers and other related questions to score good marks in the examination. Students in Class 6 to 12 appearing for examinations should refer to the important questions for all the subjects below:

### Important Questions for CBSE Class 12

Mathematics

1. What equals the range if the given function is an onto function?
2. What is the value of (kA)’, if k is scalar and A and B belong to the square matrices of the same order?
3. Calculate the approximate value of f(3.02), if f(x) is 3x² + 5x + 3.
4. What is the indefinite integral of 2x½?
5. Calculate the area of the space bounded by the parabola x2=y and the line y= x+2.
6. What is the number of arbitrary constants in the general solution of a differential equation of sixth order?
7. A girl wanders 4 kilometres west, then 3 kilometres east of north before coming to a halt. Determine how far the girl has moved from her starting spot.
8. Write the equation for a plane with a normal that is uniformly inclined to the coordinate axes and the distance from the origin is 5√3 units.
9. Two tailors, A and B, each earn Rs. 150 and Rs. 200 each day. A can stitch six shirts and four pairs of pants every day, whereas B can sew ten shirts and four pairs of pants per day. How many days should each employee work if the goal is to make a minimum of 60 shirts and 32 pairs of pants for a low labour cost? Create an LPP and use it to address the problem graphically.

Physics

1. On the surface of a spherical balloon, an electric charge is evenly distributed. Demonstrate, via a diagram, how electric intensity and potential differ (a) on the surface, (b) outside, (c) inside.
2. Calculate the system’s potential energy in eV by calculating the zero of the potential energy at infinite electron-proton separation.
3. What does it mean to have a radial magnetic field? In a moving coil galvanometer, how is it acquired?
4. Determine the magnetic field along the axis of a Toroidal solenoid using Ampere’s circuital law?
5. How is ampere defined for an alternative current?
6. The kinetic energy of an electron is 100eV. Find out the momentum, de Broglie wavelength of electrons and speed.
7. Define ground wave propagation.

Chemistry

1. Define n-type semiconductors.
2. Explain why some aquatic animals prefer cold water to warm water.
3. When a lead storage battery is in use, write down the reactions that occur at the cathode and anode. What occurs when the battery is charged?
4. What does “rate of reaction” mean? Determine the difference between the average and instantaneous rates of a reaction.
5. What exactly are emulsions? Give an example of an emulsion with water as a dispersed phase.
6. Explain the Tyndall effect.
7. Why is nitrogen relatively inert than phosphorus?
8. Define Lanthanide contraction. Explain its two consequences.
9. How is Benzyl chloride converted to Benzyl alcohol?
10. What is a peptide linkage?

Biology

1. What is the name of the cell division process that occurs in the zygote of an organism with a haplontic life cycle?
2. Give two examples of angiosperm end products from double fertilization. How does the formation take place?
3. Name the embryonic stage that is implanted and sketch a descriptive sectional view of it.
4. What distinguishes ZIFT and GIFT from intrauterine transfers? Explain
5. What is the Process of Charging of fRNA?
6. Explain adaptive radiation and convergent evolution using certain Australian marsupials and placental mammals as examples.
7. Why do athletes commonly succumb to cocaine addiction?
8. What is the process through which ozone is created in the stratosphere? What is the significance of the term “excellent ozone”? Explain how CFCs lead to the creation of ozone holes.
9. What is the need for biodiversity conservation?
10. State the functions of an ecosystem.

1. ‘Management is a series of continuous, interrelated functions with no predetermined sequence’. Explain the statement.
2. Why is the understanding of the business environment important?
3. State any five points that justify why planning is important.
4. What are formal and informal organizations? Write down their advantages and disadvantages.
5. Is staffing considered the most important part of Human Resource Management? If yes, why?
6. Describe the classification of products.
7. What are some of the basic consumer rights as per the Consumer Act 1986?
8. Explain SEBI and its functions.
9. What do you mean by the Investment and financing decisions of financial management?
10. “Communication plays a key role in the directing function of management”. Justify the statement.

Economics

1. What do you mean by high powered money?
2. Explain the leading functions of commercial banks?
3. What are non tax revenue receipts?
4. Explain the objectives of the government budget?
5. Explain the four different concepts of budget deficits.
6. What are the three major ways of public expenditure?
7. What determines the flow of the exchange rate in the economy?
8. Distinguish between fixed exchange rate and flexible foreign exchange rate.
9. Why does the demand for foreign exchange fall when the price falls?
10. Is Net Factor Income from Abroad a part of a country’s Net Domestic Product at Market Price? Explain.

### Important Questions for CBSE Class 11

Mathematics

1. A college gave 38 football medals, 15 basketball medals, and 20 cricket medals. How many guys obtained medals in just 2 of the 3 sports if these medals went to a total of 50 men and only 5 men received medals in all three sports?
2. Calculate the domain and range of, f(x) = |2x – 3| – 3.
3. Draw the graph of the solution set of x≤y.
4. Find the coordinates of a point that is at an equal distance from four points (0,0,0), (2,0,0), (0,3,0) and (0,0,8), if there is any.
5. Show that the given four points (7,5), (–1, –1), (6, –2) and (0,6) are noncyclic.
6. With the letters in the word INEFFECTIVE, how many three-letter words can you make?

Physics

1. Make a list of the four natural forces. Give any two of each type’s main traits.
2. Describe the 3 laws of planetary motion proposed by Kepler. Show that the 2nd and 3rd laws are accurate.
3. Discuss Work Energy Theorem and prove the same.
4. With a velocity of u, a projectile is launched horizontally. Demonstrate that the trajectory is parabolic.
5. Prove that the energy output of a body performing SHN is time-independent.
6. What is terminal velocity?

Chemistry

1. Find out the mass of 1C12 atom in g.
2. State the definition of  ionisation enthalpy.
3. How to obtain the linear silicone?
4. List out the different types of redox reactions
5. Give an example of an alicyclic compound
6. Describe why real gasses behave differently than ideal gasses.
7. State and explain  Pauli’s exclusion principle.

Part A

1. Differentiate between trade, commerce, and industry.
3. What are the functions of RBI?
4. What do you mean by security of business transactions through E-commerce?
5. What are some of the Major Environmental Pollution Control Activities?

Part B

1. What are the qualities of a Promoter? Explain.
2. State the definition, merits, and demerits of Trade Credit.
3. What are the issues faced by the small scale sector in marketing?
4. Discuss organization of wholesale trade.
5. What are the several agreements of the WTO?

Economics

1. What do you mean by the drain of Indian wealth during the colonial period?
2. What is an economy’s sectoral composition?
3. Examine recent trends in India’s labour  distribution by sector.
4. Differentiate between human capital and human development.
5. Mention China’s, Pakistan’s, and India’s key demographic indicators.

Accountancy

1. Is accounting a science or an art?
2. What is the fundamental accounting formula?
3. State the differences between a bill of exchange and a promissory note.
4. Explain how inadequate records can be used to determine opening and closing capital.
5. Explain the importance of computers in accounting in a few words.

### Important Questions for Class 10

Mathematics

Note: Questions can’t be reframed due to quantitative form.

Science

1. Create a balanced chemical equation for the photosynthesis process.
2. Lay down the structure of ethanol molecules.
3. How do plants carry water and minerals?
4. State the differences between pollination and fertilization.
5. Explain why a pencil partially dipped in water seems to be twisted at the water’s surface using a diagram.
6. Magnetic field lines are closed curves. Justify the statement.
7. What is the definition of water harvesting? Any two water harvesting structures should be mentioned.

### Important questions for Class 9

Mathematics

Note: Questions can’t be reframed due to quantitative form.

Science

1. Which subatomic particle is located in the nucleus of an atom, according to Rutherford’s model?
2. In ten seconds, a lamp burns 1000 J of electrical energy. Calculate its power. ?
3. Show that sound propagation requires a material medium with the use of a labelled diagram.
4. List down the difference between acute diseases and chronic diseases.
5. What are the causes of winds?
6. Compute the value of sulfur (S8) molecules in 16 g of solid sulfur.

### Important Questions for Class 8

Science

• Describe the process by which malaria is spread to people.
• Show the linear arrangement of units in plastic via a diagram.
• Explain how you can boil water in a paper cup without it burning.
• Why do we see the same surface of the moon every time?
• What happens to the copper sulfate solution when an electric current is sent through it?
• What happens during the development of an embryo?
• Define the nucleus and its key components.

Social Science

• Give elaborate details on the Prarthana Samaj Campaign.
• What type of power was given to the residents who were adopted by the company?
• How did tribal groups live?
• Give a description of the Battle of PLassey and mention what led to the battle.
• Define a mercantile.

Geography

• Provide an explanation for the farm system.
• What are the different uses of minerals?
• What is a resource? Explain the role that time plays in making something a resource.
• What is known as Rain Harvesting?
• Define the process of Soil Erosion.

Civics

• Explain the process of a Fair Trial.
• What is the Sedition Act of 1870?
• Explain the role that Parliament plays.
• Why can contractors and companies violate environmental laws? Explain.

English

Part 1- It so happened:

• What caused the Camel’s hump?
• What proof does the story provide about the Giant’s greed and wickedness?
• What did Framton notice about the major concern of the host?
• Compare and contrast Princess September’s personality with those of her other 8 sisters.

Part 2-

• What happened to Alma’s family members and herself?
• What was the role of Chunilal in the story?
• Who was Gathergold and how did he become rich?
• How does the author describe seasonal visitors in the story?
• What was Ahluwalia’s achievement?

### Important Questions for Class 7

Science

• What exactly are stomata? Explain what they do.
• How does the plant use sunlight for photosynthesis?
• What exactly is meant by soil water retention?
• What is the soil’s percolation rate?
• Explain how you can use a concave mirror to burn a sheet of paper.

Mathematics

Note: Questions can’t be reframed due to quantitative form.

Social Science

• Who were Kathak’s key supporters?
• What exactly is Manipravalam?
• What are the elements that constitute continental mass?
• What kind of animals are found in Amazon Jungles?
• Explain how a market chain is established. What function does it serve?

Geography Subject – Our Environment

• Describe the term – earth’s interior.
• What are the primary mineral components of the continental mass?
• What are the three primary rock types?
• Carbon dioxide shields us from the sun’s damaging rays. Is this true or false?
• Rain is the liquid type of precipitation that falls on the earth. Is this true or false?
• How are the crops cultivated by the Amazon Basin’s people?
• Identify the birds that are likely to be found in the Amazon jungles.

History Subject – Our Pasts-II

• Kings and their officers erected two types of constructions between the seventh and seventeenth centuries. What were they and why were they constructed?
• What distinctions do you see between the shikharas of the Rajarajeshvara temple and the Kandariya Mahadeva temple?
• What exactly is Manipravalam? Give the title of a book written in that language.
• Who were Kathak’s key supporters?
• Describe the Nathpanthis’, Siddhas’, and Yogis’ beliefs and practices.
• What were the main points made by Kabir? How did he put this into words?

Polity – Social and Political Life

• What are the two ways in which the government has attempted to enforce the constitutionally required equality?
• How may health-care costs be reduced? Discuss.
• What do the terms ‘invisible,’ ‘physically demanding,’ and ‘time – intensive’ imply to you?
• Why are products sold at permanent stores more expensive than items sold in weekly markets or by roadside hawkers?
• Explain how a market chain is established. What function does it serve?

English

• What caused the king to lose his cool?
• Is Gopal up to the challenge? What is his wife’s opinion of him?
• Mr Gessler’s boots were made of what material?
• What was Mr Gessler’s reply when the author said, “Mr Gessler, that final pair of boots creaked, you know?”
• What was Python’s reaction to Golu’s questions?
• How did the dogs react when they saw the bear?
• Why didn’t the mistress bring the bear to her sister’s?

Hindi

### Important Question for Class 6

Mathematics

Note: Questions can’t be reframed due to quantitative form.

Science

• How do you classify objects?
• Why are cotton clothes good for summer?
• What is filtration?
• What are reversible and irreversible processes?
• How do plants perform photosynthesis?
• Which bones protect our heart?
• Name animals with aquatic habitats?
• What do you mean by forces and motion?
• Name any two magnetic and non-magnetic materials.
• What are good and bad conductors of electricity?
• What are luminous and non luminous objects?
• What is the major cause of air pollution?
• Give names of five products prepared from milk.
• How can water meet our basic needs?
• What is a balanced diet?
• Which is the highest nutritious food for animals?

History

• Exactly what sort of evidence from graves do archaeologists examine to determine if there were socioeconomic inequalities among people buried?
• In what respects are modern texts different from the Rigveda?
• What methods did Ashoka use to propagate the word of dhamma?
• What do you believe Arvind would have to do if he were to play Samudragupta?
• Do you believe ordinary people could have read and comprehended the prashastis? Give reasons for your response.
• What changes do you see in the army at the moment?

Geography

• Which of the following is the third closest planet to the sun?
• Why is the Earth referred to as a “One-of-a-Kind Planet”?
• Why is the Earth referred to as the “blue planet”?
• What is the significance of the name “Land Hemisphere” for the Northern Hemisphere?
• Give the name of the  delta created by the Ganga and the Bharamputra by its name.
• Maps are more useful than globes in what ways?
• How do symbols aid with map reading?

Civics

• Do you consider the term “Unity in Diversity” appropriately describes India?
• What do you think Nehru is attempting to portray about Indian unity in the phrase “Unity in Diversity” from his book The Discovery of India?
• Why do you believe the government requires everyone to follow rules in the form of laws?
• List four ways in which the Municipal Corporation’s work influences the life of a city inhabitant.
• How does the idea that females are a burden on their parents affect a daughter’s life? Consider the following scenario and describe at least five potential consequences that this stereotype can have on how girls are treated in the home.

English

• Why did Taro put up so much effort?
• Why didn’t Taro make enough money despite his hard work?
• What did the author notice when visiting Miss Beam’s School?
• Name some of the books that were in the boy’s banyan tree library.
• Identify the poet of “Vocation.”
• What caused the two young birds to be separated?
• What drew two men to Ray’s shop?
• Why did Ray give people money in return for ancient watches and clocks?

Hindi

## Important Questions for Class 6 to 12 CBSE Board

Candidates must develop strong problem solving abilities and understanding of the concepts to score good marks in the examination. The experts have done a careful analysis of the important questions listed by CBSE with their solutions. Candidates can refer to these questions to pass the examination with flying colours . Extramarks provides the students an opportunity where they can access the important questions. The questions are collected from the CBSE sample papers, past years’ question papers and revision notes.

The subjects of Mathematics and Science require understanding and creativity. Students should consistently practice the questions to bring out the creativity in themselves. The solutions are also available so that students can refer to them properly. Candidates should properly review the important questions to improve their academic preparations before appearing for the board exams.

### Extramarks Gives You The Competitive Edge

Applicants who require additional help and information for the preparations for the board examination can visit the website of Extramarks. The platform allows the candidates to study at their one pace without any external pressures. They can follow their methods without any time constraints and hassles. Proper assignments and practice questions are provided by the experts on the website that can help the students. The specialized evaluation tests are conducted to examine the strengths and weaknesses of the students. The detailed analysis of the question papers, sample papers, live sessions, recorded classes and revision notes are provided to help the candidates in gaining a competitive edge. So, what are you waiting for? Visit Extramarks today and experience advanced learning of the concepts!