Question # 1

The simplest of these has formula:

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C60

C10

V20

C30

Density of a gas increases, when its:

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temperature is increased

pressure is increased

volume is kept constant

none of these

Which has lowest density?

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liquids

Solids

Gases

Plasma

There are ____________ states of matter

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4

3

2

1

Bucky Balls are used as ________________

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Cutting

Grafting

Lubricants

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

T (K) =

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(T) °C + 273

(T) °C -273

(T) °C + 373

(T) °C -373

The transition temperature of sulphur is:

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96 °C

250 °C

18 °C

218 °C

Gases are the lightest form of mater and their densities are expressed in terms of:

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mg cm^-3

g cm^-3

g dm^-3

kg dm^-3

Graphite is ___________

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Hard

Nil

Soft

Nil

The absolute zero means:

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273.15 °C

-273.15 °C

0 °C

-373.15 °C

The reverse of evaporation is:

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Boiling

Diffusion

Condensation

Freezing

The mathematical formula of Charle's law is:

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PV = k

V/T = k

P = VT

T/V = k

In diamonds, carbon are ____________ bonded.

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Tetrahedrally

Single

Double

None

Gases have fixed ____________

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Shape

Volume

Area

Nil

Which one of the following is not amorphous?

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rubber

plastic

glass

glucose

1 atm = ?

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1 pascal

760 mm of Hg

1 atm

1 Nm^-2

NaCl + H2O is ____________ solutions.

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Aqueous

Binary

H2O

Nil

Intermolecular forces are of three types and are collectively called ____________

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Nelson' forces

Vander Waal's forces

Neurons

Nil

Bucky balls was discovered in ________________

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1965

1975

1985

1995

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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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