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Chemistry

Chemistry
Charcoal is used in water treatment as a/an

Adsorbent
Solvent
Absorbent
Coagulant

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Chemistry
Which one of the following is known as the 'brown coal'?

Anthracite
Bituminous
Coke
Lignite

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Chemistry
Milk tastes sour when kept in the open for sometime due to the formation of

Acetic acid
Citric acid
Lactic acid
Carbonic acid

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

Mg
W
Mo
Mn

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Chemistry
The components of water can be separated by

Chemical methods
Both A and B
Physical methods
They can not be separated

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Chemistry
In deep-sea diving, divers use a mixture of gases consisting of oxygen and

Helium
Hydrogen
Nitrogen
Argon

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