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CHEMISTRY

Chemistry
Percentage of carbon in steel ranges from

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

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Chemistry
Copper is refined by

Roasting
Electrolysis
Zone refining
Oxidation

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Chemistry
Forth floatation process to concentrate the minerals is applicable to

Chalcopyrites
Haematite
Bauxite
Calamine

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Chemistry
Chemical name of Gammaxane is

Benzene hexachloride
Toluene
Aniline
Chloro benzene

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Chemistry
Epsom salt is used

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

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