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Chemistry

Chemistry
Ultra purification of a metal is done by :

Slugging
Smelting
Leaching
Zone melting

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Chemistry
Chemical name of Gammaxane is

Chloro benzene
Benzene hexachloride
Toluene
Aniline

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Chemistry
In galvanization, iron is coated with

Copper
Nickel
Tin
Zinc

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Chemistry
Carbon monoxide is an inflammable gas. Which one of the following is also inflammable?

Oxygen
Helium
Nitrogen
Hydrogen

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Chemistry
Acid rain is caused due to emission of which of the following in to the atmosphere ?

Carbon monoxide and nitrogen
Carbon dioxide and carbon monoxide
Oxides of nitrogen and sulphur
Ozone and carbon dioxide

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Chemistry
The graphite rods in the nuclear reactor

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

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