MCQ
$X$ can be prepared by except


- A

- B

- C

- ✓$C{H_3} - C \equiv CH\,\xrightarrow[{Fe\,tube}]{{\operatorname{Re} d\,hot}}$




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Assertion : For hydrogenation reactions, the catalytic activity increases from Group $5$ to Group $11$ metals with maximum activity shown by Group $7-9$ elements.
Reason : The reactants are most strongly adsorbed on group $7-9 $ elements.