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What is Lindlar's catalyst ? Mention it...

What is Lindlar's catalyst ? Mention its use.

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Use of Lindlar's catalyst: This catalyst is used for addition of 1 molecule `H_2` i.e., for partial hydrogenation of an alkyne. As cis-hydrogenation takes place in this case,a cis-alkene can be prepared from a non-terminal alkyne by using this catalyst.
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