Which set of reagents convert but-2-yne selectively to cis-but-2-ene?
A
, Lindlar catalyst
B
(liq.) C
(excess)
D
ether
Text Solution
Verified by ExpertsThe correct answer is:
A
Partial reduction of an alkyne with Lindlar's catalyst gives the cis-alkene; 
gives the trans-alkene, and Pd/C (excess) fully hydrogenates to alkane.
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