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General Science

General Science
Air is a/an

Compound
Electrolyte
Element
Mixture

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General Science
The property of a substance to absorb moisture from the air on exposure is called

Deliquescence
Efflorescence
Osmosis
Desiccation

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General Science
The main constituents of pearls are

Calcium Carbonate and Magnesium Carbonate
Aragonite and Conchiolin
Calcium Oxide and Ammonium Chloride
Ammonium Sulphate and Sodium Carbonate

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General Science
The element common to all acids is

Carbon
Hydrogen
Sulphur
Oxygen

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General Science
Isotopes are separated by:

Crystallisation
Sublimation
Distillation
Filtration

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General Science
The hardest substance available on earth is

Iron
Diamond
None of the listed here
Gold

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MORE MCQ ON General Science

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