MCQ
The above reaction is know as :-


- AStephen reaction
- ✓Rosenmund reduction
- CClemmensen's reaction
- DRiemer-Tiemann reaction

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(Rounded off to the nearest integer)
$C{H_3}CHO\mathop {\xrightarrow{{(i)\,NaCN/HCl}}}\limits_{(ii)\,{H_2}O/{H^ \oplus }/\Delta } (A)\mathop {\xrightarrow{{Fenton}}}\limits_{reagent} (B)$
$(B)$ will be :