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Aldehydes, Ketones And Carboxylic Acids

Question
CBSEENCH12008753
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Explain the following:

Hydrazones of aldehydes and ketones are not prepared in highly acidic medium.

Solution
In highly acidic medium the protonation of hydrazine (H2N = NH2) decreases its nucleophilic character. Thus, hydrozones of aldehyde and ketones are not prepared in highly acidic medium.

Some More Questions From Aldehydes, Ketones and Carboxylic Acids Chapter

Write the structures of the following compounds.
4-oxopentanal    

Write the structures of the following compounds.
Di-sec-butyl ketone

Write the structures of the following compounds.
4-fluoro acetophenone.

Write the structures of the following reactions:

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.

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