• question_answer $B{{r}^{-}}$ is converted into $B{{r}_{2}}$ by using [CPMT 1987] A) $C{{l}_{2}}$ B) Conc. $HCl$ C) $HBr$ D) ${{H}_{2}}S$

$C{{l}_{2}}+2B{{r}^{-}}\,\to \,2C{{l}^{-}}+B{{r}_{2}}$