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The correct statement regarding a carbonyl compound with a hydrogen atom on its alpha carbon, is:

  1. A
    A carbonyl compound with a hydrogen atom on its alpha-carbon rapidly equilibrates with its corresponding enol and this process is known as aldehyde-ketone equilibration.
  2. B
    A carbonyl compound with a hydrogen atom on its alpha-carbon rapidly equilibrates with its corresponding enol and this process is known as carbonylation.
  3. C
    A carbonyl compound with a hydrogen atom on its alpha-carbon rapidly equilibrates with its corresponding enol and this process is known as keto-enol tautomerism.
  4. D
    A carbonyl compound with a hydrogen atom on its alpha-carbon never equilibrates with its corresponding enol.

Solution & Step-by-step Explanation

Carbonyl compounds having at least one -hydrogen undergo a reversible transformation to an isomeric enol form. This rapid equilibration between the keto and enol forms is called keto-enol tautomerism.
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The correct statement regarding a carbonyl compound with a hydrogen atom on its alpha carbon, is:
A
A carbonyl compound with a hydrogen atom on its alpha-carbon rapidly equilibrates with its corresponding enol and this process is known as aldehyde-ketone equilibration.
B
A carbonyl compound with a hydrogen atom on its alpha-carbon rapidly equilibrates with its corresponding enol and this process is known as carbonylation.
C
A carbonyl compound with a hydrogen atom on its alpha-carbon rapidly equilibrates with its corresponding enol and this process is known as keto-enol tautomerism.
D
A carbonyl compound with a hydrogen atom on its alpha-carbon never equilibrates with its corresponding enol.

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