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Chemistry

Chemistry
Vulcanized rubber contains sulphur

3-5%
7-9%
10-15%
0.02

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Chemistry
Percentage of carbon in steel ranges from

1.5 to 3.0
0.1 to 1.5
3.0 to 4.0
4.0 to 6.0

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Chemistry
Tear gas is :

Carbonyl chloride
Bleaching powder
Chloroprene
Nitrous oxide

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Chemistry
If the sewage is fully oxidized, the nitrogen is in the form of

Nitrites
Nitrates
Ammonia
Nitramines

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Chemistry
The inert gases are ____ in water

insoluble
sparingly soluble
soluble
None of these

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Chemistry
Sulphur dioxide level in the atmosphere can be reduced by using

Catalytic converters in industry
Low - sulphur fuels
Static electricity to attract it in factory chimneys
More efficient car engines

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