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Chemistry

Chemistry
If all bullets could not be removed from gun shot injury of a man, it may cause poisoning by

Lead
Mercury
Iron
Arsenic

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Chemistry
Forth floatation process to concentrate the minerals is applicable to

Calamine
Haematite
Chalcopyrites
Bauxite

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Chemistry
Tear gas is :

Carbonyl chloride
Bleaching powder
Nitrous oxide
Chloroprene

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Chemistry
The greenhouse effect is caused by the higher level of which gas in the atmosphere ?

Carbon dioxide
Carbon monoxide
Sulphur dioxide
Nitrous oxide

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Chemistry
Who modified Bohr's theory by introducing elliptical orbits for electron path

Hund
Rutherford
Sommerfeld
Thomson

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

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

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