Question # 1

Diamonds exists in ____________ form.

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Cubic

Linear

Circular

Nil

The SI unit of pressure is:

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N

N/m²

Pascal

atm

Which one of the following gas diffuses faster?

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hydrogen

helium

fluorine

chlorine

The reverse of evaporation is:

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Boiling

Diffusion

Condensation

Freezing

Intermolecular forces are ____________ than chemical bonds.

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Stronger

Weaker

Wqual

Nil

Which has lowest density?

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liquids

Solids

Gases

Plasma

1 torr = ?

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1 mm of Hg

1 atm

760 mm of Hg

1 pascal

Which gas will diffuse faster than others?

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Hydrogen

Oxygen

Chlorine

Nitrogen

T (K) =

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(T) °C + 273

(T) °C -273

(T) °C + 373

(T) °C -373

The mathematical formula of Boyle's law is:

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PV = k

PT = k

V = kT

T = Vk

Atoms are arranged in ________________ structure in Bucky balls.

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Hollow

Cage

A & B

Nil

1 atm = ?

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1 pascal

760 mm of Hg

1 atm

1 Nm^-2

Which is kept constant in the Charle's law:

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Pressure

Temperature

Volume

Mass

Bucky molecules have ________________ c-atoms.

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20-60

20-90

40-60

40-100

Bucky Balls are used as ________________

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Cutting

Grafting

Lubricants

Nil

Carbon exists in ________________ allotropic forms.

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1

2

3

4

Transition temperature of sulphur is ____________

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95.6

95

95.5

96

The transition temperature of sulphur is:

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96 °C

250 °C

18 °C

218 °C

Bucky balls was discovered in ________________

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1965

1975

1985

1995

____________ solids are arranged in 3 dimension.

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Crystalline

Amorphous

Both

None

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