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Chemistry
When but-2-yne is treated with Na in liquid ammonia
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Q. When but-$2$-yne is treated with $Na$ in liquid ammonia
KEAM
KEAM 2014
Hydrocarbons
A
cis-2-butene is obtained
50%
B
trans-2-butene is formed
25%
C
n-butane is the major product
0%
D
it rearranges to but-1-yne
25%
E
there is no reaction
25%
Solution:
When but - $2$ - yne is treated with $Na$ in liquid ammonia, addition of two $H$ - atoms takes place at the triple bonded carbon atoms in trans manner.