NSTSE (National Science Talent Search Exam- Unified Council) Class 6: Questions 1841 - 1848 of 2029

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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

Question number: 1843

» Chemistry » Sorting Materials into Groups

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Question

We can separate solid + solid mixture by

Choices

Choice (4) Response

a.

Hand picking

b.

Sedimentation

c.

Winnowing

d.

Both a. and c. are correct

Question number: 1844

» Chemistry » Air Around Us

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MCQ▾

Question

Which of the following is vapours form?

Choices

Choice (4) Response

a.

Mist

b.

Frost

c.

Fog

d.

All a. , b. and c. are correct

Question number: 1845

» Chemistry » Air Around Us

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MCQ▾

Question

Smoke and dust particles causes.

Choices

Choice (4) Response

a.

Brain Problem

b.

Respiratory Problem

c.

None of the above

d.

Question does not provide sufficient data or is vague

Question number: 1846

» Chemistry » Sorting Materials into Groups

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MCQ▾

Question

If a substance is completely sinks in water then its relative density will be ________ one.

Choices

Choice (4) Response

a.

Equal to

b.

Greater than

c.

Less than

d.

None of the above

Question number: 1847

» Chemistry » Sorting Materials into Groups

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MCQ▾

Question

A substance is having a Relative Density of 0.28. It will

Choices

Choice (4) Response

a.

Partially sink in water

b.

Sink in water

c.

Partially float on water

d.

Float on water

Question number: 1848

» Chemistry » Air Around Us

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MCQ▾

Question

After Nitrogen, ________ is the most abundant gas in the atmosphere.

Choices

Choice (4) Response

a.

Nitrogen

b.

Carbon di-oxide

c.

Oxygen

d.

All of the above

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