Chemical Process
Glycerine is recovered from lye by

Liquid extraction technique
Evaporation followed by vacuum distillation
Extractive distillation technique
None of these

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Chemical Process
Unsaturated oils compared to saturated oils have

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

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