Question # 1

There are ____________ states of matter

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4

3

2

1

Bucky balls was discovered in ________________

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1965

1975

1985

1995

In diamonds, carbon are ____________ bonded.

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Tetrahedrally

Single

Double

None

Which one of the following gas diffuses faster?

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hydrogen

helium

fluorine

chlorine

At freezing point which one of the following coexists in dynamic equilibrium?

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gas and solid

liquid and gas

liquid and solid

all of these

P1V1 = P2V2 is mathematical form of ____________ law.

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Bohr's

Charles

Boyle's

Nil

1 torr = ?

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1 mm of Hg

1 atm

760 mm of Hg

1 pascal

The mathematical formula of Boyle's law is:

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PV = k

PT = k

V = kT

T = Vk

The SI unit of pressure is:

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N

N/m²

Pascal

atm

The escape of gaseous molecules one by one is called ____________.

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Diffusion

Effusion

A & b

Nil

Atoms are arranged in ________________ structure in Bucky balls.

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Hollow

Cage

A & B

Nil

Which one of the following does not affect the boiling point?

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intermolecular forces

external pressure

nature of liquid

initial temperature of liquid

Intermolecular forces are ____________ than chemical bonds.

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Stronger

Weaker

Wqual

Nil

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9th Class Chemistry Chapter 5 Physical States of Matter English Medium KPK Boards Online Mcqs MCQs With Answers

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