Question # 1

Carbon exists in ________________ allotropic forms.

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1

2

3

4

One atmospheric pressure is equal to how many pascals?

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101325

10325

106075

10523

Solids are fixed ____________

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Shape

Velocity

Mass

Atoms

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

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Diffusion

Effusion

A & b

Nil

There are ____________ states of matter

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4

3

2

1

Force per unit area is called:

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volume

pressure

weight

density

The forces of attraction present between the molecules of a substance are called ____________ forces.

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Intermolecular forces

Covalent

Ionic

Nil

When temperature of water drops to ____________ °C it convert onto ice.

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0

-2

-1

1

The mathematical formula of Charle's law is:

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PV = k

V/T = k

P = VT

T/V = k

1 atm = ?

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1 pascal

760 mm of Hg

1 atm

1 Nm^-2

The absolute zero means:

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273.15 °C

-273.15 °C

0 °C

-373.15 °C

Intermolecular forces are of three types and are collectively called ____________

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Nelson' forces

Vander Waal's forces

Neurons

Nil

How many time liquids are denser than gases?

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100 times

1000 times

10,000 times

100,000 times

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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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