Propane may be obtained by the catalytic hydrogenation of
(i) cyclopropane
(ii) propene
(iii) propyne

Options

A. (i), (ii)
B. (i), (iii), (iii)
C. (ii), (iii)
D. (i),(ii)

Answer

B

Explanation

`CH_(3)CH=CH_(2)+H_(2)overset(Ni)rarrCH_(3)CH_(2)CH_(3)overset(Ni)larr2H_(2)+CH_(3)C-=CH`
Hydrogen in the presence of `Ni` at elevated temperature does not attack cycloalkanes except cyclopropane ( at `180^(@)C` to give propane) and cyclobutane ( at `200^(@)C` to given `n`-butane).