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CHEMICAL PROCESS

Chemical Process
In the Lurgi coal gasifier

Large quantity of coal can be processed
Low carbon conversion efficiency is achieved
Entrainment of solids is higher
Coking coals cannot be used

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Chemical Process
Use of chlorine in the treatment of sewage

Helps in grease separation
Causes bulking of activated sludge
Aids in flocculation
Increases the biological oxygen demand(BOD)

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Chemical Process
Bleaching of paper pulp is done with

Activated clay
Bromine
Chlorine or chlorine dioxide
Magnesium sulphite

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Chemical Process
__________ is produced using polycondensation reaction.

Phenol formaldehyde
Polythene
None of these
Poly vinyl chloride

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Chemical Process
Flux addition during smelting of ore is done to

Enhance rate of reaction
Accelerate reduction of ore
Separate slag from metal
Remove impurities/gangue

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