JEE Main 2022 — Alcohols Phenols And Ethers Question with Solution
From: JEE Main 2022 (Online) 25th July Morning Shift
Question
Given below are two statements :
Statement I : On heating with , glycerol is dehydrated and acrolein is formed.
Statement II : Acrolein has fruity odour and can be used to test glycerol's presence.
Choose the correct option.
Choose an option
Show full solutionCorrect option: C
Step-by-step explanation
Glycerol, on heating with KHSO4, undergoes dehydration to give unsaturated aldehyde called acrolein. So, the statement I is correct.
Acrolein has a piercing unpleasant smell. So, statement II is incorrect.
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This is a previous-year question from JEE Main 2022, covering the Alcohols Phenols And Ethers chapter of Chemistry. PrepSharp catalogues every PYQ from JEE Main with a verified answer key and step-by-step solution prepared by IIT alumni — so you can search by chapter, topic or year and revise efficiently.