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Question: Answered & Verified by Expert
The trans-alkenes are formed by the reduction of alkynes with
ChemistryHydrocarbonsNEET
Options:
  • A Sn-HCl
  • B H2-Pd/C,BaSO4
  • C NaBH4
  • D Na/liq.NH3
Solution:
1979 Upvotes Verified Answer
The correct answer is: Na/liq.NH3
Na/liq.NH3 reduces alkynes into trans alkene (trans addition) as its mode is anti addition while rest other are syn addition reagents.

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