Question

a compound A (C2H4O2) reacts with Na metal to form a compound B and evolves a gas which burns with a pop sound . compound A on treatment with alchohol C in presence of an acid forms a sweet smelling compound D (C4H8O2) .on addition of NaOH to D gives back B and C . Identify A,B,C and C write the reactions involved .

Answer 1

A– ethanoic acid

B– sodium acetate (CH3COONa)

C– Ethanol(C2H5OH)

D–Ester

A+ Na – B+H2

A+C– D

D+NaOH – B+C

Substitute A ,B,C,D in the reactions

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Answer 2

Answer:

2 CH₃COOH + 2 Na ⇒  2 CH₃COONa + H₂O

      ( A )                                   ( B )

CH₃COOH + C₂H₅OH ⇒  CH₃COOC₂H₅ + H₂O

                        ( C )                 ( D )

CH₃COOC₂H₅ + NaOH  ⇒ C₂H₅OH + CH₃COONa

Therefore we identified

A - CH₃COOH

B - CH₃COONa

C - C₂H₅OH

D - CH₃COOC₂H₅