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14/01/2022 4:20 pm
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Keto-enol tautomerism is observed in
(a) H5C6 - \({\overset{O}{\overset{||}{C}}} - CH_2\)\(- {\overset{O}{\overset{||}{C}}} - C_6H_5\)
(b) H5C6 - \({\overset{O}{\overset{||}{C}}} - CH_3\)
(c) H5C6 - \({\overset{O}{\overset{||}{C}}} - H\)
(d) Both (a) and (b)
1 Answer
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14/01/2022 4:42 pm
Correct answer: (d) Both (a) and (b)
Explanation:
Keto-enol tautomerism is shown by carbonyl compounds having α-hydrogen atom.
(a) H5C6 - \({\overset{O}{\overset{||}{C}}} - CH_2\)\(- {\overset{O}{\overset{||}{C}}} - C_6H_5\) ⇌ H5C6 - \({\underset{H}{\underset{|}{C}}} ={\overset{OH}{\overset{||}{C}}} - C_6H_5 \)
(b) H5C6 - \({\overset{O}{\overset{||}{C}}} - CH_3\) ⇌ C6H5 - \({\overset{OH}{\overset{||}{C}}} = CH_2\)
(c) C6H5 - \({\overset{O}{\overset{||}{C}}} - C\)