Section-D: Comprehension Type
Two isomeric alkynes A and B have molecular formula C8H14. A on treatment with ammonical solution of AgNO3 forms no precipitate. Also both A and B are chiral and hydrogenation of either A or B with H2/Pt gives the same achiral hydrocarbon C(C8H18). Treatment of A with HgSO4/H2SO4(aq) gives D(C8H16O) as major product while on similar treatment of B gives mixture of D and E in comparable amount. Answer the following questions based on the above information.
The structures of A and B are respectively.