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Aldehydes, Ketones and Carboxylic Acids
Question
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Given,


Which of the given compounds can exhibit tautomerism?

  • I and II

  • I and III

  • II and III

  • I, II and III

Answer

D.

I, II and III

In keto-enol tautomerism, keto form should have alpha hydrogen (structure I and II).

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Some More Questions From Aldehydes, Ketones and Carboxylic Acids Chapter

Write the structures of products of the following reactions:


    

Arrange the following compounds in increasing order of their boiling points:
CH3CHO, CH3CH2OH, CH3OCH3, CH3CH2CH3.

Arrange the following compounds in increasing order of their reactivity in nucleophilic addition reactions:    
Ethanal, Propanal, Propanone, Butanone.

Arrange the following compounds in increasing order of their reactivity in nucleophilic addition reactions:    
Benzaldehyde, p-Tolualdehyde, p-Nitrobenzaldehyde, Acetophenone.

Predict the products of the following reactions:

Predict the products of the following reactions:

Predict the products of the following reactions:

Predict the products of the following reactions: