Hydrocarbons Part 2

But-2-yne and hydrogen (one mole each) are separately treated with (i) Pd∕C and (ii) Na∕ liq. NH3 to give the products X and Y respectively.

Identify the incorrect statements.
A. X and Y are stereoisomers.
B. Dipole moment of X is zero.
C. Boiling point of X is higher than Y .
D. X and Y react with O3∕Zn+H2O to give different products.
Choose the correct answer from the options given below :