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Chemistry

Chemistry
The percentage of oxygen in air is approximately

0.21
0.78
1
0.01

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Chemistry
If the sewage is fully oxidized, the nitrogen is in the form of

Ammonia
Nitramines
Nitrates
Nitrites

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Chemistry
Drinking soda is

Oxidant
Alkaline
Neutral
Acidic

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Chemistry
Iodine can be separated from a mixture of Iodine and Potassium Chloride by

Distillation
Sedimentation
Filtration
Sublimation

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Chemistry
Laughing gas is

Nitrogen trioxide
Nitrous oxide
Nitrogen pentoxide
Nitric oxide

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Chemistry
Petroleum consists of a mixture of

Carbohydrates
Hydrocarbons
Carbonates
Carbides

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MORE MCQ ON Chemistry

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