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Chemical Process

Chemical Process
__________ is used as a flux in the smelting of copper ore like chalcopyrite.

Dolomite
Coke breeze
Lime powder
Silica/quartz

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Chemical Process
Which is the main reducing agent during production of iron from iron ore in a blast furnace?

CO
CO₂
H₂
C

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Chemical Process
Fermentation is adversely affected by the

Absence of air
Presence of ammonium salts
High concentration
Presence of air

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Chemical Process
Yellow glycerine is made into white, using

Bauxite
Activated carbon
Diatomaceous earth
Bentonite

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Chemical Process
Which of the following is not a raw material used for the manufacture of ordinary glass?

Iron oxide
Silica
Limestone
Soda ash

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Chemical Process
An oil is converted into fat by its

Hydrogenation
Hydrocracking
Hydration
Hydrolysis

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