Question
Raina while doing certain reactions observed that heating of substance ' $X$ ' with vinegar like smell with a substance ' $Y$ ' (which is used as an industrial solvent) in presence of conc. Sulphuric acid on a water bath gives a sweet-smelling liquid ' $Z$ ' having molecular formula $C _4 H _8 O _2$. When heated with caustic soda $( NaOH )$, ' $Z$ ' gives back the sodium salt of and the compound ' $Y$ '
Identify ' $X$ ', ' $Y$ ', and ' $Z$ '. Illustrate the changes with the help of suitable chemical equations.
Identify ' $X$ ', ' $Y$ ', and ' $Z$ '. Illustrate the changes with the help of suitable chemical equations.

