An organic compound (A) is widely used as a preservative in a pickle and has a molecular formula $C_2{H}_4{O}_2$. This compound reacts with ethanol to form a sweet smelling compound (B).
(i) Identify the compounds A and B.
(ii) Name the process and write the corresponding chemical equation.

Q. An organic compound 'A' is widely used as a preservative in pickles and has a molecular formula C₂H₄O₂. This compound reacts with ethanol to form a sweet smelling compound 'B'.
(i) Identify the compound 'A'.
(ii) Write the chemical equation for its reaction with ethanol to form compound 'B'.
(iii) How can we get compound 'A' back from 'B'?
(iv) Name the process and write corresponding chemical equation.
(v) Which gas is produced when compound 'A' reacts with washing soda? Write the chemical equation.

Q. An organic compound A is widely used as a preservative in Pickles and has molecular formula C2H4O2. This compound reacts with ethanol to form a sweet smelling compound B
(I) Identify the compound A
(2)Write the chemical equation for it's reaction with ethanol to form compound B
(3)How can you get back compound A from compound B
(4)Name the process and the chemical equation for the conversion of B to A

Q. An organic compound A (molecular formula 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 an alcohol C in the presence of a little of concentrated sulphuric acid forms a sweet-smelling compound D (molecular formula C₃H₆O₂). Compound D on treatment with NaOH solution gives back B and C. Identify A, B, C and D.