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Chemistry

Chemistry
KMnO4 can be used as a/an

Pesticide
Fertiliser
Disinfectant
Insecticide

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Chemistry
The compound used in pricklyheat powder to prevent excessive sweating is

Sulphuric acid
Carbonic acid
Phosphoric acid
Boric acid

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Chemistry
Which metal is extracted from sea water?

Beryllium
Aluminium
Potassium
Magnesium

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Chemistry
Petroleum consists of a mixture of

Carbohydrates
Carbonates
Hydrocarbons
Carbides

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Chemistry
Which of the following is a man-made source of air pollution ?

Bacterial action in soil and swamp areas
Forest fire
All of these
Automobile exhaust

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Chemistry
Milk tastes sour when it is left in open for some time. This happens due to the formation of

Carbonic acid
Citric acid
Lactic acid
Acetic acid

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