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Chemistry

Chemistry
This group of alumino-silicate minerals is widely used in making electrical insulators

Bauxite
Manganese
Chromite
Mica

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Chemistry
KMnO4 can be used as

Fertilizer
Pesticide
Insecticide
Disinfectant

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Chemistry
Acid rain' is caused due to air - pollution by

Carbon dioxide
Nitrous oxide and sulphur dioxide
Methane
Carbon monoxide

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Chemistry
The chief source of naphthalene is

Camphor
Coal-tar
Diesel
Charcoal

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Chemistry
The chemical that is used to ripen mangoes is

Calcium carbonate
Calcium carbide
Calcium sulphide
Calcium chloride

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Chemistry
Sulphur dioxide present in the industrial chimney exhaust causes

All of these
Corrosion building materials
Respiratory and lung disease
Reduction in plant's productivity owing to acid rain

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