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प्रश्न
What is meant by the following term? Give an example of the reaction in the following case.
Semicarbazone
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उत्तर
Semicarbazones are derivatives of aldehydes and ketones produced by the condensation reaction between a ketone or aldehyde and semicarbazide.
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संबंधित प्रश्न
Write balanced chemical equations for action of ammonia on - formaldehyde
Draw the structure of the semicarbazone of ethanal.
Predict the product of the following reaction:
Acetaldehyde, Acetone, Di-tert-butyl ketone, Methyl tert-butyl ketone (reactivity towards HCN)
Give plausible explanation for the following:
There are two −NH2 groups in semicarbazide. However, only one is involved in the formation of semicarbazones.
How are the following compounds prepared?
acetophenone from benzene
How are the following compounds prepared?
benzaldehyde from benzoyl chloride
Alkenes 
and carbonyl compounds 
, both contain a π bond but alkenes show electrophilic addition reactions whereas carbonyl compounds show nucleophilic addition reactions. Explain.
A Idol condensation will not be observed in
Which will undergo faster nucleophilic addition reaction?
Acetaldehyde or Propanone
The product "P" in the above reaction is:
Which of the following is most reactive in nucleophilic addition reactions?
Out of p-tolualdehyde and p-nitrobenzaldehyde, which one is more reactive towards nucleophilic addition reactions, why?
Draw structures of the given derivatives.
The ethylene ketal of hexan-3-one
Draw structures of the following derivative.
The ethylene ketal of hexan-3-one
Draw structure of the following derivative.
The ethylene ketal of hexan-3-one
Draw the structure of the following derivative.
Acetaldehydedimethylacetal
Draw the structure of the given derivative.
The ethylene ketal of hexan-3-one
Which of the following will not be formed when calcium formate is distilled with calcium acetate?
