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Chemistry

Chemistry
The most common cause of pollution of air is

Carbon monoxide
Carbon dioxide
Smoke
Sulphur dioxide

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Chemistry
The most commonly used bleaching agent is

sodium chlorine
carbon dioxide
alcohol
chlorine

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Chemistry
The nuclear particles which are assumed to hold the nucleons together are

electrons
positrons
neutrons
mesons

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Chemistry
Nitrogen forms a variety of compounds in all oxidation states ranging from

–3 to + 4
–3 to + 5
–3 to + 3
–3 to + 6

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Chemistry
By which organic compound all the oils are known ?

Carbohydrate
Hydrocarbon
Protein
Ester

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Chemistry
Liquid Nitrogen boils at

97 Kelvin
82 Kelvin
77 kelvin
54 kelvin

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MORE MCQ ON Chemistry

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