Consider the reactions:
Identify A, X, Y and Z
A-Methoxymethane, X-Ethanoic acid, Y-Acetate ion, Z-hydrazine.
A-Methoxymethane, X-Ethanol, Y-Ethanoic acid, Z-Semicarbazide.
A-Ethanal, X-Ethanol, Y-But-2-enal, Z-Semicarbazone.
A-Ethanol, X-Acetaldehyde, Y-Butanone, Z-Hydrazone.
As we learnt in
Addition of ketones with alcohols -
Produces an unstable hemiketal intermediate and further stable compound called ketal.
- wherein
and
Addition of ammonia and its derivatives with aldehydes and ketones -
Product formation is favoured due to rapid dehydration of the intermediate to form > C = NG
- wherein
and
Aldol condensation -
Aldehydes and ketones possessing - hydrogen atom in the presence of dilute alkali undergo self-condensation to form - hydroxy aldehyde and
- hydroxy ketone.
- wherein
Option 1)
A-Methoxymethane, X-Ethanoic acid, Y-Acetate ion, Z-hydrazine.
this option is incorrect
Option 2)
A-Methoxymethane, X-Ethanol, Y-Ethanoic acid, Z-Semicarbazide.
this option is incorrect
Option 3)
A-Ethanal, X-Ethanol, Y-But-2-enal, Z-Semicarbazone.
this option is correct
Option 4)
A-Ethanol, X-Acetaldehyde, Y-Butanone, Z-Hydrazone.
this option is incorrect