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Chemistry

Chemistry
Which of the following is biodegradable ?

D.T.
Plastic
Aluminium
Paper

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Chemistry
Carborundum is another name of

Silicon carbide
Calcium carbide
Calcium oxide
Silicon oxide

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Chemistry
The method of concentrating the ore which makes use of the difference in density between ore and impurities is called

leaching
liquation
levigation
magnetic separation

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Chemistry
The gas used for filling weather balloons is

Air
Nitrogen
Helium
Hydrogen

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Chemistry
An example of major air pollutant is

Carbon monoxide
Oxygen
Helium
Carbon dioxide

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Chemistry
The metal that is used as a catalyst in the hydrogenation of oils is

Pt
Cu
Ni
Pb

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MORE MCQ ON Chemistry

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