Question

36. An organic compound A having the molecular formula
C,H,O, Is used as a preservative. This compound reacts
with ethanol forms a sweet smelling compound B.
(1) Identify the compound A.
(2) Write a balanced chemical equation for the reaction
of Awith ethanol.
(3) How can we get compound A from B?
(4) Which gas is produced when compound A reacts with
washing soda?​

Answer 1

•Information given:-

i)A molecular formula - c2h4o2 , used as preservative.

ii) A + ethanol -----> B ( sweet smelling).

___________________________

1) A - ch3cooh ( c2h4o2) in dilute form of vinegar.

in dilute form of vinegar. (ethanoic acid)

2) ch3cooh + c2h5oh -------> ch3cooc2h5 +h2o.

( ester )

3) we can get compound A back from compound B by oxidizing it .

ethanol --alk. kmo4---------- ethanoic acid.

c2h5oh ----alk.kmo4-------- ch3cooh.

4) ch3cooh + na2co3 --------> ch3coona + co2 + h2o.

hence carbon dioxide gas is produced.