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Chemistry

Chemistry
What is the atomic number of Oxygen

12
5
22
8

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Chemistry
Neoprene is a polymer of

Isoprene
Chloroprene
Isopentane
Isobutane

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Chemistry
Two elements which can form a large number of compounds are

Carbon and Hydrogen
Carbon and Oxygen
Carbon and Nitrogen
Carbon and Sulphur

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Chemistry
The first metal used by a man was

Copper
Silver
Brass
Bronze

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Chemistry
Gold dissolves in

Nitric acid
Aqua-regia
Acetic acid
Hydrochloric acid

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Chemistry
The liquid waste from kitchens and baths, of residences is known as :

Storm water
Domestic sewage
Refuse
Sullage

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MORE MCQ ON Chemistry

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