Hydrocarbons - Result Question 59
####61. Reduction of 2-butyne with sodium in liquid ammonia gives predominantly
[1993]
(a) cis-2-butene
(b) No reaction
(c) trans-2-butene
(d) n-butane.
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Solution:
- (c) Reduction of alkynes with $Na /$ liq. $NH_3$ gives trans-alkenes. This reaction is called Birch reduction
$ CH_3-C \equiv C-CH_3+H_2 $
