Chemistry [NSTSE (National Science Talent Search Exam- Unified Council) Class 9]: Questions 1 - 7 of 208

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Question number: 1

» Chemistry » Matter

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MCQ▾

Question

If atmospheric pressure decreases the boiling point of a liquid ________

Choices

Choice (4)Response

a.

Increases

b.

Remains same

c.

Cannot say

d.

Decrease

Question number: 2

» Chemistry » Matter

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MCQ▾

Question

Which of the following statement is correct?

Choices

Choice (4)Response

a.

Only liquids can flow

b.

Gases and solids can flow

c.

Only gases can flow

d.

Gases and liquids can flow

Question number: 3

» Chemistry » Matter

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MCQ▾

Question

The simplest of matter is ________

Choices

Choice (4)Response

a.

Compound

b.

Atom

c.

Element

d.

Mixture

Question number: 4

» Chemistry » Matter

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MCQ▾

Question

What effect is seen on kinetic energy of the molecule, when heat energy is supplied?

Choices

Choice (4)Response

a.

Remains same

b.

Decreases

c.

Increases

d.

First increases then decreases

Question number: 5

» Chemistry » Matter

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MCQ▾

Question

Select the element which is not liquid at room temperature.

Choices

Choice (4)Response

a.

Gallium

b.

Mercury

c.

Bromine

d.

Copper

Question number: 6

» Chemistry » Matter

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MCQ▾

Question

Which form of particle has regular arrangement of lattice?

Choices

Choice (4)Response

a.

Crystalline form

b.

Amorphous form

c.

Liquid form

d.

None of the above

Question number: 7

» Chemistry » Matter

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MCQ▾

Question

How can a gas be liquefied?

Choices

Choice (4)Response

a.

Increasing the temperature

b.

Lowering the temperature

c.

Increasing the pressure

d.

Increasing the pressure and lowering the temperature

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