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Chemistry
Keto-enol tautomerism is not observed in
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Q. Keto-enol tautomerism is not observed in
WBJEE
WBJEE 2010
Aldehydes Ketones and Carboxylic Acids
A
$C_6H_5COC_6H_5$
33%
B
$C_6H_5COCH=CH_2$
33%
C
$C_6H_5COCH_2COCH_3$
0%
D
$CH_3COCH_2COCH_3$
33%
Solution:
$C _{6} H _{5} COC _{6} H _{5}$ does not exhibit tautomerism as it contains no $\alpha$-H atom.