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Chemistry

Chemistry
Polythene is polymer of

Aniline
Propylene
Ethylene
Acetylene

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Chemistry
Formation of ozone hole is maximum over

Antarctica
Africa
India
Europe

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Chemistry
The acid which is secreted by the glands in the stomach wall is

Phosphoric acid
Sulphuric acid
Hydrochloric acid
Nitric acid

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Chemistry
The trans-uranium elements are the chemical elements with atomic numbers greater than

92
86
96
89

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Chemistry
The graphite rods in the nuclear reactor

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

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Chemistry
Galvanization is the :

Deposition of copper on iron
Deposition of zinc on iron
Deposition of aluminium on iron
Deposition of tin on iron

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