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Chemistry

Chemistry
In vulcanisation process, rubber can be hardened by adding

Silicon
Nitrogen
Alcohol
Sulphur

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Chemistry
Diamond is harder than graphite because of :

Tetrahedral structure of diamond
None of these
Difference of crystalline structures
Difference in layers of atoms

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Chemistry
Which of the following substance is highly plastic ?

Quartz
Mica
Granite
Clay

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Chemistry
Acid rain is caused by

NO2and particulates
SO2 and NO2
CO2and CFCs
SO2 and particulates

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Chemistry
Gas released during Bhopal tragedy was :

Methyl isothiocyanate
Ethyl isothiocyanate
Sodium isothiocyanate
Potassium isothiocyanate

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Chemistry
Which variety of coal contains recognisable traces of the original plant material ?

Peat
Lignite
Anthracite
Bitumen

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MORE MCQ ON Chemistry

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