NSTSE (National Science Talent Search Exam- Unified Council) Class 6: Questions 1758 - 1767 of 2029

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Question number: 1758

» Chemistry » Sorting Materials into Groups

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Question

Which of the following material is opaque?

Choices

Choice (4) Response

a.

Air

b.

Wood

c.

Glass

d.

Glass lenses

Question number: 1759

» Chemistry » Water

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Question

pH of water is

Choices

Choice (4) Response

a.

3

b.

7

c.

8

d.

6

Question number: 1760

» Chemistry » Air Around Us

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Question

________ Gas is used for making advertising signs.

Choices

Choice (4) Response

a.

Carbon di-oxide

b.

Oxygen

c.

Neon

d.

Nitrogen

Question number: 1761

» Chemistry » Sorting Materials into Groups

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Question

We need to separate mixture to get substances.

Choices

Choice (4) Response

a.

Undesirable

b.

Harmful

c.

Useful

d.

All of the above

Question number: 1762

» Chemistry » Air Around Us

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Question

Animal die due to lack of.

Choices

Choice (4) Response

a.

Oxygen

b.

Nitrogen

c.

Both a. and b. are correct

d.

None of the above

Question number: 1763

» Chemistry » Air Around Us

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Question

Which inert gas is radio active in nature?

Choices

Choice (4) Response

a.

Radon

b.

Argon

c.

Xenon

d.

None of the above

Question number: 1764

» Chemistry » Sorting Materials into Groups

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Question

Juice is an example of

Choices

Choice (4) Response

a.

Homogenous Mixture

b.

Heterogeneous Mixture

c.

Pure

d.

None of the above

Question number: 1765

» Chemistry » Air Around Us

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Question

Which human activity is causing pollution?

Choices

Choice (4) Response

a.

Chemical weapons in war

b.

Use of pesticides

c.

Deforestation

d.

All a. , b. and c. are correct

Question number: 1766

» Chemistry » Air Around Us

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Question

In which of the following products nitrogen is not used?

Choices

Choice (4) Response

a.

Nitric Acid

b.

Ammonia

c.

Fertilizer

d.

None of the above

Question number: 1767

» Chemistry » Water

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MCQ▾

Question

A substance which have negligible solubility in water is called

Choices

Choice (4) Response

a.

Soluble in water

b.

Partially insoluble

c.

Insoluble in water

d.

All of the above

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