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Chemistry

Chemistry
The gas used in the manufacture of vanaspati from vegetable oil is

carbon dioxide
nitrogen
oxygen
hydrogen

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Chemistry
Ozone consists of

Hydrogen and Carbon
Oxygen and Nitrogen
Oxygen and Carbon
Oxygen only

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Chemistry
The Bhopal tragedy was caused by the gas

Chlorine
Methyl isocyanate
Phosgene
Carbon monoxide

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Chemistry
Which of the following gases is most toxic ?

Carbon dioxide
Sulphur dioxide
Chlorine
Carbon monoxide

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Chemistry
Number of neutrons in an atom of hydrogen is

Three
One
Two
Zero

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Chemistry
Helium is added to the oxygen supply of deep sea divers because it is

Lighter than nitrogen
Less soluble in blood than nitrogen at high pressure
Less poisonous than nitrogen
Readily miscible with oxygen

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MORE MCQ ON Chemistry

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