Question # 1

Oxidation of alkenes produce.

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Glyoxal

Glycol

Oxalic acid

Formic acid

The depletion of which gas results in the death of aquatic life.

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Oxygen

Carbon di oxide

Boath of them

Nome of them

The two major components of atmosphere are:

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Hydrogen and oxygen

Nitrogen and Hydrogen

Nitrogen and oxygen

Oxygen and water.

Alkenes are produced in large amounts by cracking of.

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Natural gas

Petroleum

Benzene

xylol

The number of carbon atoms present in petroleum gas.

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1-2

1-3

1-4

1-5

Mg²⁺ and Ca²⁺ ions react with soap to form calcium and magnesium salts of fatty acids called.

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Gelatin

Scum

Paste

None of them

Which acid is used for etching glass?

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HF

HCl

HBr

HI

Lactose and maltose are;

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monosaccharides

disaccharides

trisaccharides

tetrasaccharides

Chemical formula of amino group is

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NH₃

NH₂

NH₄

COOH

The energy provided by carbohydrates in per gram.

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17 KJ

21 KJ

35 KJ

10 KJ

Rapid growth of algae in water bodies in because of detergent having.

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Carbonat salt

Sulphonic acid

Sulphat salt

Phosphate salt

Which disease cause liver inflammation?

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Typhoid

Jaundice

cholera

Hepatitis

Percentage of carbon in peat is.

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50%

60%

70%

80%

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