The hydrocarbon, which can react with sodium in liquid ammonia is

Options

A. `CH_(3)CH_(2)CH_(2)C-=C CH_(2)CH_(2)CH_(3)`
B. `CH_(3)CH_(2)C-=CH`
C. `CH_(3)CH-=CHCH_(3)`
D. `CH_(3)CH_(2)C-=C CH_(2)CH_(3)`

Answer

B

Explanation

`underset("But-1-yne")(CH_(3)CH_(2)C)-=CH underset(Delta)overset(Na//Liq.NH_(3))rarrCH_(3)CH_(2)C-=CNa^(+)`
Only terminal alkyne is responsible for reaction with Na in liquid ammonia.