Question

a compund xc2h4o on oxidation gives yc2h4o. x undergoes haloform reaction. on treatment with hcn x gives z which on hydrolysis gives 2 hydroxy propanoic acid. identify x,y,z​

Answer 1

Answer:

X: Acetaldehyde or Ethanal ( C2H4O)

Y: Ethanoic acid (CH3COOH)

Z: a cyanohydrin ( C3H4NO)

Explanation:

1. X i.e. Ethanal on oxidation gives Ethanoic acid (Y).

• EQUATION:

      C2H4O              --->       CH3COOH                                  (On OXIDATION)

2. Now, X i.e ethanal undergoes haloform reaction.

• EQUATION:

        Ethanal ---> Formic acid + CHI3                        (HALOFORM REACTION)

3. X i.e. ethanal reacts with HCN to yield a cyanohydrin (Z).

This cyanohydrin on hydrolysis yields 2 hydroxy propanoic acid.

• EQUATION:

        C3H4NO ---> 2 hydroxy propanoic acid (C3H6O3)         (HYDROLYSIS)

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