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Chemistry

Chemistry
The metal chiefly used for galvanising iron is :

Tin
Zinc
Mercury
Cadmium

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Chemistry
Which one of the following is used for dating very old objects of archaeological importance?

Radium
Carbon-14
Tritium
Phosphorus-31

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Chemistry
The most abundant element in the earth’s atmosphere is

Nitrogen
Krypton
Argon
Oxygen

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Chemistry
The next higher homologue of C6H14 is

C7H16
C7H12
C7H14
C6H12

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Chemistry
Neoprene is prepared by polymerisation of which of the following

1,3-butadiene
Acrylonitrile
2-chloro-1, 3-butadiene
2-methyl 1, 3-butadiene

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Chemistry
Which method will be employed to test the hardness of water?

None of these
Boiling
Formation of lather with soap
Distillation

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