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Chemistry

Chemistry
Chemically ‘Quick Silver is known as

Copper
Aluminium
Mercury
Silver

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Chemistry
Ozone layer is present in

Troposphere
Ionosphere
Exosphere
Stratosphere

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Chemistry
Which one of the following was used as a chemical weapon in the first world war ?

Water gas
Carbon monoxide
Hydrogen cyanide
Mustard gas

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

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

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Chemistry
The alkaloid naturally found in coffee, cocoa and cola nut is

Tannin
Caffeine
Morphine
Cocaine

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Chemistry
In chemical terms, what are alums used for purifying water for drinking purposes ?

Nitrates of aluminium
Double sulphates
Hydrated chlorides
Double nitrate

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MORE MCQ ON Chemistry

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