NSTSE (National Science Talent Search Exam- Unified Council) Class 9: Questions 1993 - 2000 of 2000

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Question number: 1993

» Chemistry » Matter

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Question

Generally non-reacting gases have the tendency to mix with each other, this process is known as?

Choices

Choice (4) Response

a.

Effusion

b.

Diffusion

c.

Explosion

d.

Evaporation

Question number: 1994

» Chemistry » The Nature of Matter

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MCQ▾

Question

A solid dispersed in liquid is known as?

Choices

Choice (4) Response

a.

Alloy

b.

Suspension

c.

Solvent

d.

Sol

Question number: 1995

» Chemistry » Atoms & Molecules

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MCQ▾

Question

The number of atoms in of carbon is called?

Choices

Choice (4) Response

a.

a. m. u

b.

Mole

c.

Atomic mass

d.

None of the above

Question number: 1996

» Chemistry » Atoms & Molecules

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Question

If is chloride of a metal then what in the formula of phosphate of metal

Choices

Choice (4) Response

a.

b.

c.

d.

Question number: 1997

» Chemistry » Atoms & Molecules

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Question

Calculate how many moles present in of anhydrous sodium carbonate?

Choices

Choice (4) Response

a.

b.

c.

d.

Question number: 1998

» Chemistry » Atoms & Molecules

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Question

Findout the number of atoms present in of chlorine gas?

Choices

Choice (4) Response

a.

b.

c.

d.

Question number: 1999

» Chemistry » The Nature of Matter

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MCQ▾

Question

When air blows into a balloon, it becomes bigger. What inference can be make from the above process?

Choices

Choice (4) Response

a.

Air is matter

b.

Air is a gas

c.

Air occupies

d.

Air has mass

Question number: 2000

» Chemistry » Matter

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MCQ▾

Question

Which of the following factor can effect directly on kinetic energy of particles?

Choices

Choice (4) Response

a.

Potential energy

b.

Temperature

c.

Pressure

d.

None of the above

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