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Chemistry

Chemistry
The important ore of aluminium is

Fluorspar
Bauxite
Cryolite
Haematite

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Chemistry
The substance which does not expand on going from liquid state to solid state is

Type metal
Cast-iron
Water
Aluminium

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Chemistry
L.P.G. is mostly liquefied

Hydrogen
Oxygen
Methane
Butane

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Chemistry
Piped Natural Gas (PNG) is used for

Mining
Anaesthesia
Cooking
Welding

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Chemistry
Which of the following is the strongest base in aqueous solution ?

Triethylamine
Diethylamine
Ammonia
Ethylamine

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Chemistry
A fertile soil is likely to have a pH of

3
14
9
43989

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