Which of the following catalyst/reagent is used to convert $\mathrm{C} \equiv \mathrm{C}$ triple bond to…

Which of the following catalyst/reagent is used to convert $\mathrm{C} \equiv \mathrm{C}$ triple bond to $\mathrm{C} \equiv \mathrm{C}$ double bond to form cis isomer of alkene?
  1. $\mathrm{Na} /$ liquid $\mathrm{NH}_3$
  2. $\mathrm{Pd}-\mathrm{C}$, quinolone
  3. $\mathrm{ZnCl}_2 / \mathrm{HCl}$
  4. $\mathrm{Na} / \mathrm{Hg}$ in $\mathrm{H}_2 \mathrm{O}$

Solution

$\mathrm{Pd}-\mathrm{C}$, quinolone

Asked in: MHT CET 2021 (24 Sep Shift 2)

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