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Chemistry

Chemistry
The most abundant element is

Nitrogen
Oxygen
Calcium
Silicon

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Chemistry
The metal extracted from Bauxite is :

Silver
Manganese
Aluminum
Copper

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Chemistry
Which acid is used in Lead storage battery?

Nitric acid
Acetic acid
Sulphuric acid
Hydrochloric acid

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Chemistry
Vulcanization of rubber is carried out by adding

Sulphur
Ozone
Carbon
Phosphorus

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Chemistry
DDT and BHC may act as

Asthematic agents
Carcinogens
Allergens
None of these

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Chemistry
Food cans are coated with tin and not with zinc because

Zinc is more reactive than tin
Zinc is costlier than tin
Zinc is less reactive than tin
Zinc has a higher melting point than tin

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MORE MCQ ON Chemistry

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