Home
Class 11
CHEMISTRY
Keto-enol tautomerism is observed in...

Keto-enol tautomerism is observed in

A

`C_(6)H_(5)-overset(O)overset(||)(C)-H`

B

`C_(6)H_(5)-overset(O)overset(||)(C)-CH_(3)`

C

`C_(6)H_(5)-overset(O)overset(||)(C)-C_(6)H_(5)`

D

`C_(6)H_(5)-overset(O)overset(||)(C)-overset(CH_(3))overset(|)underset(CH_(3))underset(|)(C)-C_(6)H_(5)`

Text Solution

Verified by Experts

The correct Answer is:
B
For a compound to exhibit keto-enol isomerism, presence of `alpha`-hydrogen is necessary. This is satisfied only by acetophenone.
Promotional Banner

Topper's Solved these Questions

  • SOME BASIC PRINCIPALS OF ORGANIC CHEMISTRY

    A2Z|Exercise Geometrical Isomerism|47 Videos

  • SOME BASIC PRINCIPALS OF ORGANIC CHEMISTRY

    A2Z|Exercise Optical Isomerism|53 Videos

  • SOME BASIC PRINCIPALS OF ORGANIC CHEMISTRY

    A2Z|Exercise Structure Isomerism|28 Videos

  • SOME BASIC CONCEPTS OF CHEMISTRY

    A2Z|Exercise Section D - Chapter End Test|30 Videos

  • STATES OF MATTER

    A2Z|Exercise Section D - Chapter End Test|30 Videos

Similar Questions

Explore conceptually related problems

Keto - enol tautomerism is oberved in :

Keto-enol tautomerism is not observed in:

Keto enol tautomerism is not observed in:

Keto-enol tautomerism is shown by

Keto-enol tautomerism does not observe in :

Keto - enol tautomerism is not shown by

Assertion When pure d-1(+)-2 methlylbutanal is treated with diute H_(2)SO_(4) it is racemised completely. Reason It' s alpha carbon is chiral which undergo keto-enool tautomerism in the presence of acid catalyst.