Chemistry-Air Around Us [NSTSE (National Science Talent Search Exam- Unified Council) Class 6]: Questions 1 - 6 of 50

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Question number: 1

» Chemistry » Air Around Us

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Question

Which property is similar in rusting and burning?

Choices

Choice (4)Response

a.

Needs oxygen

b.

They forms oxide

c.

Both a. and b. are correct

d.

Question does not provide sufficient data or is vague

Question number: 2

» Chemistry » Air Around Us

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MCQ▾

Question

Which gas is used in respiration?

Choices

Choice (4)Response

a.

Nitrogen

b.

Oxygen

c.

Hydrogen

d.

Question does not provide sufficient data or is vague

Question number: 3

» Chemistry » Air Around Us

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MCQ▾

Question

In Nitrogen the two N atoms are combines together using.

Choices

Choice (4)Response

a.

Three single covalent bonds

b.

Triple covalent bonds

c.

Three triple covalent bonds

d.

Three single ionic bonds

Question number: 4

» Chemistry » Air Around Us

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MCQ▾

Question

‘Dust particles are a part of atmosphere. These are solid, minute particles floating in the air’.

Choices

Choice (4)Response

a.

Sometimes false

b.

Sometime true

c.

False

d.

True

Question number: 5

» Chemistry » Air Around Us

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MCQ▾

Question

Smoke present in air due to burning of fossil fuel. It carries minute particle that cause

Choices

Choice (4)Response

a.

Asthma

b.

Bronchitis

c.

Both a. and b. are correct

d.

Question does not provide sufficient data or is vague

Question number: 6

» Chemistry » Air Around Us

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MCQ▾

Question

Radon is radioactive and it belongs to the family of ________ gases.

Choices

Choice (4)Response

a.

Noble

b.

Oxygen

c.

Halogen

d.

All of the above

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