Question

# Glycerin can be purified by:A. vacuum distillationB. simple distillationC. steam distillationD. Fractional distillation

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Hint:In the method used to purify the glycerine is generally a purification technique not a separation technique as the compound gets distilled at the temperature below the boiling point temperature of the compound.

Glycerin is the compound containing three hydroxyl groups with the molecular formula ${C_3}{H_8}{O_3}$. The boiling point of glycerin is 290 degree Celsius.