NCERT Class 9 Science [NCERT Based General Studies (GS)]: Questions 1 - 5 of 547

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Question 1

Question MCQ▾

Physical nature of matter believes that:

Choices

Choice (4)Response

a.

It is continuous just like a block.

b.

All kinds of matters to be in the form of tiny particles which are in motion

c.

Both a. and b. are correct

d.

Question does not provide sufficient data or is vague

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Question 2

Question MCQ▾

Any substance can exist in liquid state which has:

Choices

Choice (4)Response

a.

More intermolecular space than solids

b.

Strong intermolecular force between constituent particles

c.

Kinetic energy is sufficient enough for particles to move to and fro

d.

Both b. and c. are correct

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Question 3

Question MCQ▾

Any substances exist in gaseous form if:

Choices

Choice (4)Response

a.

It has negligible intermolecular forces

b.

It has large kinetic energy

c.

Both a. and b. are correct

d.

None of the above

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Question 4

Question MCQ▾

Sublimation is used for:

Choices

Choice (4)Response

a.

Separating liquids and gases

b.

Separating volatile substances from non-volatile substances

c.

Separating solids and liquids

d.

None of the above

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Question 5

Question MCQ▾

Why cold drinks, spray cans, perfume bottles and deodorants are kept away from direct heat or sunlight?

Choices

Choice (4)Response

a.

Change in volume of gas due to change of temperature is very high

b.

Gases can be liquefied on cooling

c.

Because gases diffuse easily

d.

Question does not provide sufficient data or is vague

Edit