Question

The catalyst used in Rosenmund reaction is

• A. Zn /Hg
• B. $\mathrm{Pd}/\mathrm{BaSO}{}_4$
• C. Raney Ni
• D. Na in Ethanol

Answer 1

Answer: (B)

Roseumund's reaction -
$\mathrm{RCOCl}+\mathrm{H}{}_2\stackrel{\mathrm{Pd}/\mathrm{BaSO}{}_4}{\to }\mathrm{RCHO}+\mathrm{HCl}$