(a(i))[1]
Suggest which functional groups account for the reactions with sodium.
(a(ii))[1]
Suggest which functional groups account for the reactions with bromine water.
(a(iii))[1]
Suggest which functional groups account for the reactions with alkaline aqueous iodine.
(b)[2]
Suggest suitable structures for $V$ and $W$.
(c)[2]
State the kind of stereoisomerism shown by compound $V$ and draw the stereoisomer structures.
(d)[1]
Suggest the structure of the neutral compound $X$, $\text{C}_4\text{H}_{10}\text{O}_3$.