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Chemistry

Chemistry
Tear gas used by the police to disperse the mob contains

Carbon dioxide
Chlorine
Hydrogen sulphide
Ammonia

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Chemistry
Entropy of Universe is always

Constant
Decreasing
Increasing
Zero

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Chemistry
If we burn graphite,

No residue will be left
It will change into diamond
It will not burn
Residue will be left

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Chemistry
Concentration of a material which is lethal to 50% animal is called

NOAEL
LD50
LC50
ADI

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Chemistry
Which one is not a pure form of carbon

Gold
Diamond
Coal
Graphite

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Chemistry
________ is used for making vinegar.

Acetic acid
Oxalic acid
Malic acid
Tartaric acid

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