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Chemical Process

Chemical Process
Purity of oxygen used for blowing in steel making L.D. converter is 99.5%. The boiling point of oxygen is about __________ °C.

-183
-53
-103
-196

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Chemical Process
Esterification reaction produces

Vanaspati
Soap
Detergent
Mercaptans

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Chemical Process
In industrial nomenclature, alcohol means

Methyl alcohol
Butyl alcohol
Propyl alcohol
Ethanol

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Chemical Process
A bio-catalyst produced by living cells which acts independent of the cell is called a/an

None of these
Nutrient
Enzyme
Substrate

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Chemical Process
Permanent hardness of water can be removed by

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

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Chemical Process
Roasting of metallurgical ores is done mainly to

Dehydrate it
Remove arsenic & sulphur
Sinter the ore
Remove CO₂ & H₂O

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