Identify the major product that is obtained when 2-hexyne is treated with H2 and Lindlar's catalyst.Select answer from the options belowtrans-2-hexene1-hexene cis-2-hexenehexane
Question
Identify the major product that is obtained when 2-hexyne is treated with H2 and Lindlar's catalyst.Select answer from the options belowtrans-2-hexene1-hexene cis-2-hexenehexane
Solution
The major product obtained when 2-hexyne is treated with H2 and Lindlar's catalyst is cis-2-hexene.
Here's the step-by-step process:
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2-hexyne is an alkyne, which is a hydrocarbon with a triple bond.
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When an alkyne is treated with hydrogen (H2) and Lindlar's catalyst, it undergoes hydrogenation.
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However, Lindlar's catalyst is a special type of catalyst that causes the reaction to stop at the alkene stage (double bond), rather than fully hydrogenating to an alkane (single bond).
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Furthermore, Lindlar's catalyst specifically produces a cis-alkene, where the two hydrogen atoms add to the same side of the molecule.
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Therefore, the product of this reaction is cis-2-hexene.
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