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CHEMICAL PROCESS

Chemical Process
In the Lurgi coal gasifier

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

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Chemical Process
Use of chlorine in the treatment of sewage

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

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Chemical Process
Bleaching of paper pulp is done with

Bromine
Activated clay
Chlorine or chlorine dioxide
Magnesium sulphite

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Chemical Process
__________ is produced using polycondensation reaction.

Poly vinyl chloride
Polythene
None of these
Phenol formaldehyde

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Chemical Process
Flux addition during smelting of ore is done to

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

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