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Chemistry

Chemistry
'Vinegar' is a commercial name of

Hydrochloric acid
Acetic acid
Oxalic acid
Citric acid

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Chemistry
How many neutrons are there in 92U238 atom ?

330
238
92
146

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Chemistry
Which of the following is used to remove ink and rust stains on cloth?

Oxalic acid
Ether
Kerosene oil
Alcohol

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Chemistry
The ‘Green House effect’ is produced due to the presence of excess amount of

Methane
Carbon monoxide
Nitrogen dioxide
Sulphur dioxide

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Chemistry
Muddy water is treated with alum in purification process, itis termed as :

Coagulation
Absorption
Emulsification
Adsorption

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Chemistry
The highest volume of gases in lower atmosphere is comprised of

Hydrogen
Oxygen
Carbon dioxide
Nitrogen

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MORE MCQ ON Chemistry

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