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Chemistry

Chemistry
The most suitable unit for expressing nuclear radius is :

Fermi
Micron
Angstrom
Nanometre

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Chemistry
The acid which fails to liberate carbon dioxide from sodium bicarbonate is :

Sulphuric acid
Formic acid
Carbonic acid
Acetic acid

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Chemistry
L.P.G. is mostly liquefied

Hydrogen
Methane
Oxygen
Butane

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Chemistry
The number of moles of solute present in 1 kg of a solvent is called its

normality
molality
formality
molarity

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Chemistry
Water can be separated from alcohol water mixture by

Decantation
Evaporation
Sublimation
Distillation

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Chemistry
Air is said to be saturated when :

It contains maximum content of water vapour
Its thickness is maximum
It blows over the barren land
Its pressure is minimum

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