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Chemical Process

Chemical Process
High temperature carbonisation of coal takes place at __________ °C.

700
1100
2000
< 500

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

CO₂
H₂
CO
C

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Chemical Process
Air used in aerobic fermentation must be sterilized, otherwise the

Uniformity of product cannot be achieved
Recovery of product will be difficult
Contamination of pure culture would result
None of these

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Chemical Process
Sucrose is a

None of these
Polysacchride
Monosacchride
Disacchride

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Chemical Process
Permanent hardness of water can be removed by

Simply boiling
All of these
Passing it through cation & anion exchangers
Adding alum

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Chemical Process
Salt is added in the kettle during soap manufacture to separate

The metallic soap
Soap from lye
The unsaponified fat from soap
Glycerine from lye

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