JEE Main 2022 · 30 Jul · Shift 2 · Chemistry Q42

ChemistrySingle correct+4 / -1Question 42 of 90

Glycerol can be separated from spent-lye on industrial scale by using

TLC technique

Distillation under reduced pressure

Differential Extraction

Crystallization

Answer and worked solution

Official answer: B

Glycerol boils at 563 K with decomposition, so it is recovered from spent lye by distillation under reduced pressure.

(B)

Topics:Purification and characterisation

JEE Main 2022 · 30 Jul · Shift 2, Chemistry question 42