NSTSE (National Science Talent Search Exam- Unified Council) Class 6: Questions 1741 - 1749 of 2029

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Question number: 1741

» Chemistry » Water

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Question

If 30ml of alcohol is mixed with 70ml of water to get 100ml of solution volume percent will be

Choices

Choice (4) Response

a.

30%

b.

100%

c.

70%

d.

40%

Question number: 1742

» Chemistry » Sorting Materials into Groups

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Question

Distillation is the process of getting water.

Choices

Choice (4) Response

a.

Impure

b.

Pure

c.

Question does not provide sufficient data or is vague

d.

All of the above

Question number: 1743

» Chemistry » Sorting Materials into Groups

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Question

________ does not float on water.

Choices

Choice (4) Response

a.

Wax

b.

Ice

c.

Paper

d.

None of the above

Question number: 1744

» Chemistry » Sorting Materials into Groups

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MCQ▾

Question

Cream is separated from milk by

Choices

Choice (4) Response

a.

Centrifugation

b.

Separating Funnel

c.

Chromatography

d.

All of the above

Question number: 1745

» Chemistry » Sorting Materials into Groups

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MCQ▾

Question

A pure liquid is obtained from a solution by

Choices

Choice (4) Response

a.

Distillation

b.

Evaporation

c.

Crystallization

d.

Filtration

Question number: 1746

» Chemistry » Sorting Materials into Groups

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MCQ▾

Question

Which of the following materials has a high capacity to absorb heat?

Choices

Choice (4) Response

a.

Iron

b.

Plastic

c.

Glass

d.

Water

Question number: 1747

» Chemistry » Air Around Us

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Question

Fishes use ________ dissolved to the water for breathing.

Choices

Choice (4) Response

a.

Nitrogen

b.

Oxygen

c.

Carbon di-oxide

d.

All of the above

Question number: 1748

» Chemistry » Sorting Materials into Groups

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MCQ▾

Question

Mixture of sand and water can be separated by

Choices

Choice (4) Response

a.

Filtration

b.

Decantation

c.

Sedimentation

d.

Both b. and c. are correct

Question number: 1749

» Chemistry » Sorting Materials into Groups

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MCQ▾

Question

Pouring of liquid without disturbing sediments is called

Choices

Choice (4) Response

a.

Sublimation

b.

Filtration

c.

Sedimentation

d.

Decantation

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