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Chemistry

Chemistry
Ultraviolet radiation striking the earth is due to the depletion of

Carbon dioxide
Carbon monoxide
Oxygen
Ozone

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Chemistry
Which of the following caused radioactive pollution along the coast of Kerala ?

Zinc
Radium
Thorium
Plutonium

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Chemistry
Main source of lead pollution is from

Sewage
Tobacco
Insecticides
Leaded gasoline

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Chemistry
Cement is formed by strongly heating a mixture of

Chalk and graphite
Clay and graphite
Limestone and graphite
Limestone and clay

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Chemistry
The working of a dry cell is based on

Combination reaction
Electrolysis
Spontaneous oxidation-reduction reaction
Decomposition reaction

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Chemistry
Which is not an anasthetic agent in surgical operations?

Acetone
Nitrous oxide
Chloroform
Ether

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MORE MCQ ON Chemistry

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