NSTSE (National Science Talent Search Exam- Unified Council) Class 6: Questions 1834 - 1842 of 2029

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Question number: 1834

» Chemistry » Air Around Us

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MCQ▾

Question

Gas which human exhale?

Choices

Choice (4)Response

a.

Nitrogen

b.

Oxygen

c.

Carbon di-oxide

d.

All of the above

Question number: 1835

» Chemistry » Air Around Us

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MCQ▾

Question

Which of the following is not an inert gas?

Choices

Choice (4)Response

a.

Krypton

b.

Hydrogen

c.

Helium

d.

Xenon

Question number: 1836

» Chemistry » Sorting Materials into Groups

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MCQ▾

Question

Example of heterogeneous mixture is

Choices

Choice (4)Response

a.

Peanut butter

b.

Water and petrol

c.

Cough syrup

d.

All of the above

Question number: 1837

» Chemistry » Sorting Materials into Groups

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MCQ▾

Question

In chromatography filter paper act as

Choices

Choice (4)Response

a.

Stationary phase

b.

Phase

c.

Mobile phase

d.

Telephone phase

Question number: 1838

» Chemistry » Sorting Materials into Groups

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MCQ▾

Question

Solid + liquid mixture can be.

Choices

Choice (4)Response

a.

Heterogeneous Mixture

b.

Homogeneous Mixture

c.

Both a. and b. are correct

d.

None of the above

Question number: 1839

» Chemistry » Air Around Us

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MCQ▾

Question

Molecular formula of nitrogen is –

Choices

Choice (4)Response

a.

N4

b.

N3

c.

N2

d.

N

Question number: 1840

» Chemistry » Water

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MCQ▾

Question

What happens when potassium gently dropped on the surface of cold water?

Choices

Choice (4)Response

a.

It floats

b.

It partially sinks

c.

It sinks

d.

It evaporates

Question number: 1841

» Chemistry » Air Around Us

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MCQ▾

Question

Vapour Density of air is 14.4 and nitrogen is.

Choices

Choice (4)Response

a.

03

b.

14.3

c.

14.00

d.

All of the above

Question number: 1842

» Chemistry » Sorting Materials into Groups

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MCQ▾

Question

Size of solute particles has ________ relation with its solubility.

Choices

Choice (4)Response

a.

No

b.

Not defined

c.

Direct

d.

Inverse

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