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Chemistry

Chemistry
Identify the metal which is non toxic in nature.

Chromium
Cadmium
Gold
Cobalt

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Chemistry
Copper is refined by

Zone refining
Electrolysis
Roasting
Oxidation

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Chemistry
The gas dissolved in water that makes it basic is :

Hydrogen
Carbon dioxide
Sulphur dioxide
Ammonia

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Chemistry
A colloidal system in which a liquid is dispersed in a liquid is called

Sol
Emulsion
Gel
Precipitate

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Chemistry
Which of the following acts as promoter for iron in Haber's process

W
Mo
Mg
Mn

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Chemistry
The degree of dissociation of an electrolyte depends on

Dilution
Impurities
Atmospheric pressure
Method of dissolution

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