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Chemistry

Chemistry
Which of the following is biodegradable ?

Paper
D.T.
Plastic
Aluminium

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Chemistry
In vulcanisation process, rubber can be hardened by adding

Sulphur
Nitrogen
Alcohol
Silicon

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Chemistry
Which gas is used as fire extinguisher ?

Carbon monoxide
Sulphur dioxide
Carbon dioxide
Carbon suboxide

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Chemistry
Which of the following could be used as fuel in propellant or rockets ?

Liquid Hydrogen + Liquid Oxygen
Liquid Oxygen + Liquid Argon
Liquid Hydrogen + Liquid Nitrogen
Liquid Nitrogen + Liquid Oxygen

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Chemistry
The most important ore of aluminium is

magnetite
monazite
bauxite
haematite

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Chemistry
The lightest gas which is non-inflammable is

Hydrogen
Helium
Oxygen
Nitrogen

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MORE MCQ ON Chemistry

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