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CHEMISTRY

Chemistry
The process of improving the quality of rubber by heating it with sulphur is called.

Sulphonation
Acceleration
Galvanization
Vulcanization

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Chemistry
Rusting of iron takes place due to

Corrosion
Carbonation
Exfoliation
Oxidation

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Chemistry
Combustion of a candle is a/an

Photochemical reaction
Endothermic reaction
Physical change
Exothermic reaction

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Chemistry
Which of the following is chiefly present in LPG (Liquefied Petroleum Gas) ?

Methane
Ethane
Propane
Butane

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Chemistry
Candle is a mixture of

Paraffin was and stearic acid
Higher fatty acids and stearic acid
Bees wax and paraffin wax
Bees wax and stearic acid

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