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Chemistry

Chemistry
The important ore of aluminium is

Cryolite
Fluorspar
Haematite
Bauxite

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Chemistry
For a spontaneous chemical process, the free energy change is

Zero
Negative
Depends on whether the reaction is exothermic or endothermic
Positive

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Chemistry
The chief source of naphthalene is

Diesel
Coal-tar
Charcoal
Camphor

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Chemistry
The main component of liquid bleach is:

Sodium chloride
Sodium hypochlorite
Hydrochloric acid
Sodium hypochlorate

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Chemistry
Which of the following is usually not an air-pollutant?

Sulphur dioxide
Nitrous oxide
Carbon dioxide
Hydrocarbons

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Chemistry
Ultra purification of a metal is done by :

Slugging
Smelting
Zone melting
Leaching

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MORE MCQ ON Chemistry

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