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CHEMICAL PROCESS

Chemical Process
In the Lurgi coal gasifier

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

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Chemical Process
Use of chlorine in the treatment of sewage

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

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Chemical Process
Bleaching of paper pulp is done with

Magnesium sulphite
Bromine
Activated clay
Chlorine or chlorine dioxide

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Chemical Process
__________ is produced using polycondensation reaction.

Phenol formaldehyde
Poly vinyl chloride
Polythene
None of these

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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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