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CHEMISTRY

Chemistry
Percentage of carbon in steel ranges from

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

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Chemistry
Copper is refined by

Oxidation
Roasting
Electrolysis
Zone refining

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Chemistry
Forth floatation process to concentrate the minerals is applicable to

Calamine
Haematite
Chalcopyrites
Bauxite

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Chemistry
Chemical name of Gammaxane is

Benzene hexachloride
Aniline
Chloro benzene
Toluene

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Chemistry
Epsom salt is used

In paper industry
In making tooth paste
As purgative
In softening water

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