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Chemistry

Chemistry
The metal that is usually extracted from sea water is

Mg
Na
Ca
K

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Chemistry
Zone refining is used for the purification of

Cu
Ag
Au
Ge

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Chemistry
Cooking gas is a mixture of

Carbon dioxide and oxygen
Butane and propane
Methane and ethylene
Carbon monoxide and carbon dioxide

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Chemistry
The graphite rods in the nuclear reactor

undergo combustion which triggers the nuclear fission
produce neutrons
react with U to release energy
convert fast moving neutrons into thermal neutrons

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Chemistry
The Bhopal tragedy was caused by the gas

Phosgene
Methyl isocyanate
Chlorine
Carbon monoxide

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Chemistry
The manufacture of iron from iron ore involves the process of

Electrolysis
Reduction
Fractional distillation
Oxidation

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MORE MCQ ON Chemistry

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