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Chemistry

Chemistry
One carat of diamond is equal to

200 mg
150 mg
250 mg
100 mg

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Chemistry
The gas which turns into liquid at the lowest temperature among the following is

Hydrogen
Oxygen
Nitrogen
Helium

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Chemistry
A pungent smell often present near the urinals is due to

Sulphur-di- oxide
Chlorine
Urea
Ammonia

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Chemistry
The temperature of oxy-acetylene flame is around

3200°C
4000°C
3600°C
2800°C

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Chemistry
The function of sedimentation tank in sewage treatment is to:

Disinfect the sewage
Remove water content
Aerate the sewage
Remove suspended solids

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Chemistry
Laughing gas is

Nitrogen trioxide
Nitrous oxide
Nitrogen pentoxide
Nitric oxide

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MORE MCQ ON Chemistry

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