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Chemistry

Chemistry
Forth floatation process to concentrate the minerals is applicable to

Haematite
Bauxite
Chalcopyrites
Calamine

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Chemistry
Glycol is added to aviation gasoline because it

Reduces consumption of petrol
Reduces evaporation of petrol
Prevents freezing of petrol
Increases efficiency of petrol

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Chemistry
When Hydrogen starts burning in air, it produces ?

Ammonia
Water
Methane
Carbonic Acid

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Chemistry
Chemical name of Gammaxane is

Toluene
Aniline
Chloro benzene
Benzene hexachloride

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Chemistry
Greenhouse effect is caused by

Carbon dioxide
Nitrogen
Carbon monoxide
Nitrogen dioxide

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Chemistry
Gobar gas mainly contains

Methane
Carbon monoxide
Hydrogen sulphide
Carbon dioxide

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MORE MCQ ON Chemistry

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