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Chemistry

Chemistry
In an oxygen molecule, two atoms are united by

Four bonds
One bond
Two bonds
Three bonds

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Chemistry
Charcoal is used in water treatment as a/an

Coagulant
Solvent
Absorbent
Adsorbent

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Chemistry
By-product obtained by soap industry is

Caustic soda
Caustic potash
Naphthalene
Glycerol

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Chemistry
Ferrous sulphate is used in water treatment as a/an

Adsorbent
Reducing agent
Coagulant aid
Oxidizing agent

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Chemistry
The acid which is secreted by the glands in the stomach wall is

Sulphuric acid
Phosphoric acid
Nitric acid
Hydrochloric acid

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Chemistry
Normal rainwater has a pH level of

3.2
5.6
6.3
8.3

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MORE MCQ ON Chemistry

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