Chemical Process
Sulphur addition in soap is done to

Increase its cleansing action
Cure pimples & dandruff
Fasten lather formation
Improve the soap texture

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Chemical Process
Pick out the true statement pertaining to water treatment.

Activated carbon can be used for taste & odour control without subsequent filtration
Slow sand filters can remove colour completely
Application of activated carbon reduces the temporary hardness of water
Normally, the turbidity is removed by adding a coagulent prior to sedimentation

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