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Air and Atmosphere — Practice Quiz

ICSE · Class 7 · Chemistry

Try a 4-question quiz on Air and Atmosphere for ICSE Class 7 Chemistry: tap an answer to check it and see why. 42 questions in the full chapter test.

42 questions48 flashcards5 concepts

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Quick Quiz: Air and Atmosphere

0/4

Tap an answer to check it instantly. No sign-up needed for these 4.

1

What is the main constituent of air by volume?

2

What percentage of air by volume is oxygen?

3

Which gas is called the active part of air?

4

Which gas is the most abundant inert gas in air?

42 Questions·
multiple choicemultiple correct

Sample Questions

1multiple choice
1 marks

What is the percentage of carbon dioxide in air?

Show answer

0.03% to 0.04%

Carbon dioxide is present in air in a very small amount, about 0.03% to 0.04% by volume.

2multiple choice
1 marks

Which scientist proved in 1774 that air is a mixture of gases?

Show answer

Antoine Lavoisier

Antoine Lavoisier proved in 1774 that air is a mixture of gases.

3multiple choice
1 marks

Which gas was first discovered by Joseph Priestley in 1774?

Show answer

Oxygen

Joseph Priestley discovered oxygen in 1774 by heating mercury(II) oxide.

4multiple choice
1 marks

Which gas is essential for respiration?

Show answer

Oxygen

Living beings use oxygen in respiration to release energy from food.

+38 more questions on Air and Atmosphere (ICSE Class 7 Chemistry)

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Frequently Asked Questions

What are the important topics in Air and Atmosphere for ICSE Class 7 Chemistry?
Key topics in Air and Atmosphere include Air as a Mixture, Main Gases in Air, Discovery and Preparation of Oxygen, Properties and Uses of Oxygen. Study these first, then practise questions on each for Class 7 exams.
How many practice questions are there for Air and Atmosphere?
There are 42 questions on Air and Atmosphere. Try the 4-question sample quiz on this page first; each answer shows an explanation when you tap it.

Sources & Official References

Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.

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