Question

CH3-C=-C-CH3+H2+pd/Baso4​

Answer 1

Answer:

A Lindlar catalyst is a heterogeneous catalyst that consists of palladium deposited on calcium carbonate or barium sulphate which is then poisoned with various forms of lead or sulphur. It is used for the hydrogenation of alkynes to cis alkenes (i.e. without further reduction into alkanes) When the triple bond is (2-butyne) hydrogenated over the Lindlar’s catalyst i.e.Pd/BaSO  

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 it gives predominantly cis alkene(2-butene).  

Explanation:

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