Question # 1

Intermolecular forces are of three types and are collectively called ____________

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Nelson' forces

Vander Waal's forces

Neurons

Nil

The reverse of evaporation is:

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Boiling

Diffusion

Condensation

Freezing

Bucky balls are ____________ allotropic forms of carbon.

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1st

2nd

3rd

4th

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

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

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Diffusion

Effusion

A & b

Nil

Bucky molecules have ________________ c-atoms.

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20-60

20-90

40-60

40-100

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

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0

-2

-1

1

The mathematical formula of Boyle's law is:

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PV = k

PT = k

V = kT

T = Vk

Mass per unit volume is:

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Velocity

Dencity

Pressure

Nil

One atmospheric pressure is equal to how many pascals?

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101325

10325

106075

10523

Which gas will diffuse faster than others?

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Hydrogen

Oxygen

Chlorine

Nitrogen

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