Question # 1

At ____________ °C water converts to ice.

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101°

100°

99°C

100.2°C

Effusion is a property of:

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Gases

LIquids

Solids

Plasma

There are ____________ states of matter

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4

3

2

1

The mathematical formula of Charle's law is:

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PV = k

V/T = k

P = VT

T/V = k

Which has lowest density?

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liquids

Solids

Gases

Plasma

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

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0

-2

-1

1

The SI unit of pressure is:

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N

N/m²

Pascal

atm

The absolute zero means:

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273.15 °C

-273.15 °C

0 °C

-373.15 °C

Diamonds is ____________

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Soft

Hard

Bulky

Nil

Es is symbol of :

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Erbium

Einsteinium

Europium

Fremium

Transition temperature of sulphur is ____________

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95.6

95

95.5

96

Which one of the following is not amorphous?

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rubber

plastic

glass

glucose

Density of a gas increases, when its:

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temperature is increased

pressure is increased

volume is kept constant

none of these

Intermolecular forces are ____________ than chemical bonds.

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Stronger

Weaker

Wqual

Nil

Graphite is ___________

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Hard

Nil

Soft

Nil

Gases have ____________ shape.

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Fixed

Not Fixed

Nil

Both a & b

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

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

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Diffusion

Effusion

A & b

Nil

Mass per unit volume is:

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Velocity

Dencity

Pressure

Nil

Solid particles possess which one of the following motions?

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rotational motions

vibrational motions

translation motions

both translational and vibrational motions

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