Question # 1

Wt. of 112 ml of oxygen at NTP on liquefaction would be

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0.32 g

0.64 g

0.16 g

0.96 g

Octane number is zero for

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n-Heptane

Isooctane

n-Hexane

Isoheptane

Hydrogen chloride molecule contains

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Covalent bond

Double bond

Co-ordinate bond

Electrovalent bond

The relative rate of diffusion of a gas (molecular wright - 128) as compared to oxygen is

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2 times

1/4

1/8

1/2

Benzene is obtained by fractional distillation of

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Heavy oil

Anthracene oil

Middle oil

Light oil

An electrolyte

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Forms complex ions in solution

Gives ions only when electricity is passed

Possesses ions even in solid state

Gives ions only when dissolved in water

2 g oxygen contains number of atoms equal to that in

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0.5 g of hydrogen

4 g of sulphur

7 g of nitrogen

2.3 g of sodium

Which of the following geometry is associated with the compound in which the central atom assumes sp³ d hybridization?

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Planar

Pyramidal

Angular

Trigonal bipyramidal

Rusting of iron is catalysed by

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Fe

O₂

Zn

H⁺

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