What is obtained when $H_2S$ gas is passed through $Hg_2^{2+}$ solution?

The reaction $2Cu^{+} \rightarrow Cu + Cu^{2+}$ is called:

Which of the following best describes the behavior of bromine in the reaction given below?
$H_2O + Br_2 \to HOBr + HBr$

$3 ClO_{3}^{-}(aq) \rightarrow ClO^{-}(aq) + 2 ClO_{3}^{-}(aq)$ is an example of

Write the balanced chemical equation for the reaction of $Cl_{2}$ with hot and concentrated $NaOH$. Is this reaction a disproportionation reaction? Justify.

The disproportionation of $MnO_{4}^{2-}$ in acidic medium results in the formation of two manganese compounds $A$ and $B$. If the oxidation state of $Mn$ in $B$ is smaller than that of $A$,then the spin-only magnetic moment $(\mu)$ value of $B$ in $BM$ is $.........$ (Nearest integer).