MCQ
For gold plating, the electrolyte used is
- A$AuC{l_3}$
- B$HAuC{l_4}$
- ✓$k[Au{(CN)_2}]$
- DNone of these
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

$H_2C = CH -CH_2 -OH \xrightarrow[excess]{HBr}$ Product
(Figure) $\xrightarrow[FeB{{r}_{3}}]{B{{r}_{2}}}B\xrightarrow{Sn\,/\,HCl}C$ $\xrightarrow[HCl]{NaN{{O}_{2}}}D\xrightarrow[HBr]{CuBr}E$