Chemistry - STRUCTURAL ISOMERISM Question with Solution | TestHub
Statement-I : Cyclohexanone exhibits keto-enol tautomerism.
Because
Statement-II : In cyclohexanone, one form contains the keto group (C=O) while other contains enolic group (– C=C–OH).
Options:
Answer:
Solution:
Question Explanation :
The question tests understanding of keto-enol tautomerism in cyclohexanone (statement-I and statement-II).
Concept: Keto-Enol Tautomerism, Carbonyl Compounds, Enolization
Solution:
Cyclohexanone has α-hydrogens (hydrogens on the carbon next to the C=O group).
These α-hydrogens are acidic due to the electron-withdrawing effect of the carbonyl group.
Because they are acidic, removal of an α-H forms an enolate ion, which then picks up a proton on
oxygen to make the enol form.
Statement-I is True, Statement-II is True ; Statement-II is a correct explanation for Statement-I