Chemical Process
Unsaturated oils compared to saturated oils have

Higher melting point & higher reactivity to oxygen
Lower melting point & lower reactivity to oxygen
Higher melting point & lower reactivity to oxygen
Lower melting point & higher reactivity to oxygen

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

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

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