Question # 1

Alum is not used

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As a mordant in dyeing

As an insecticide

In purification of water

In tanning of leather

In a crystal a ≠ b ≠ c, a = γ = 90° and β ≠ 90°, it is

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Monoclinic

Rhombic

Trigonal

Tetragonal

The percentage of oxygen in NaOH is

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40

60

8

10

The kinetic theory of gases predicts that total kinetic energy of a gaseous assembly depends on

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Pressure of the gas

Temperature of the gas

Volume of the gas

Pressure temperature and volume of the gas

Dilute hydrochloric acid solution cannot be concentrated by boiling beyond

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11%

33%

44%

22%

The halide which is not hydrolysed is

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SiCI₄

SiF₄

CCI₄

PbCI₄

The percentage of nitrogen in urea is

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46

60

70

80

Benzene + Ozone → Y. in this sequence Y is

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Benzene monoozonide

Benzene diozonide

Benzene triozonide

Succinic acid

Which of the following fluorides does not exist?

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NF₅

PF₅

AsF₅

SbF₅

When pressure is applied to the equilibrium system Ice Water Which of the following phenomenon will happen?

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More ice will be formed

Water will evaporate

More water will be formed

Equilibrium will not be formed

The carbon atoms in calcium carbide are held by

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Ionic bonds

2 sigma bonds

2 covalent one co-ordinate bond

2 π and one σ bond

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