Question # 1

Atmosphere is divided into;

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3 regions

4 regions

5 regions

6 regions

Petroleum fraction having composition C₇to C₁₀IS called

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Petroleum gas

Petroleum Ether

Kerosine oil

Gasoline or petrol

The ability of carbon atoms to form chains or ring called.

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Hydrogenation

Chlorination

Cantenation

Halogenation

Swimming pools are cleaned by the process.

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Chlorination

Hydrogenations

Saponification

None of them

Alkanes give reaction only

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Addition

Decomposition

Substitution

Displacement

A salt always

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Contain ions

Contains water of crystallization

Dissolves in water

Forms crystals which conduct electricity

The percentage of potable water on earth is.

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2%

0.2%

0.02%

0.002%

Such reactions which continue in both directions are called.

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Irreversible

Reversible

Nonreactive

Dynamic

Lavoisier named binary compounds of oxygen acids in .

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1787

1790

1815

1828

A product of any Lewis acid base reaction is a single specie called.

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Salt

Water

Adduct

None of these

Oxidation of ethene with KMnO₄produces.

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oxalic acid

glyoxal

ethene glycol

Propene glycol

Eggs oils and fats contain vitamin .

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A

B

C

D

Citric acid is present in

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Citrus fruits

Sour milk

Rancid butter

Apple

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