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Chemistry

Chemistry
One of the constituents of tear gas is

Ethanol
Chloropicrin
Ether
Ethane

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Chemistry
The metal ion present in Vitamin B12 is

Iron
Nickel
Cobalt
Zinc

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Chemistry
Basicity of boric acid, H3BO3 is

5
4
3
2

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Chemistry
Which of the following is not a noble gas ?

Helium
Argon
Neon
Hydrogen

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Chemistry
The mineral containing both magnesium and calcium is

dolomite
calcite
magnesite
carnallite

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Chemistry
In vulcanisation process, rubber can be hardened by adding

Nitrogen
Sulphur
Silicon
Alcohol

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MORE MCQ ON Chemistry

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