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Chemistry

Chemistry
Among the following the hardest metal is

Platinum
Gold
Iron
Tungsten

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Chemistry
Who developed Hydrogen Bomb?

J. Robert Oppen Heimer
Wernher Von Braun
Samuel Cohen
Edward Teller

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Chemistry
Particulates (< 1 µm size) remaining suspended in air indefinitely and transported by wind currents are called

Mists
Aerosols
Smoke
Fumes

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Chemistry
The element which is used for vulcanizing rubber

Phosphorus
Silicon
Sulphur
Bromine

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Chemistry
Nitrogen forms a variety of compounds in all oxidation states ranging from

–3 to + 6
–3 to + 3
–3 to + 5
–3 to + 4

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Chemistry
Which of the following is used as filler in tyre of rubber ?

Coke
Graphite
Coal
Carbon black

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MORE MCQ ON Chemistry

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