Chemistry - Redox Reactions Question with Solution | TestHub

Find number of reaction in which at least one of the atom is in zero oxidation state in product side.

(i) ${\mathrm{MnO}}_4^{-}/{\mathrm{H}}^{+}+{\mathrm{H}}_2{\mathrm{O}}_2\to$

(ii) ${\mathrm{Hg}}_2{\mathrm{I}}_2+\mathrm{KI}\to$

(iii) ${\mathrm{Hg}}_2{\mathrm{Cl}}_2+{\mathrm{NH}}_4\mathrm{OH}\to$

(iv) $\mathrm{PbS}+{\mathrm{HNO}}_3\to$

(v) $\mathrm{KI}+{\mathrm{Na}}_2{\mathrm{S}}_2{\mathrm{O}}_3\stackrel{{\mathrm{H}}^{+}}{\to }$

(vi) ${\mathrm{KMnO}}_4+\mathrm{KI}\underset{\text{ Medium }}{\overset{\text{ Alkaline }}{\to }}$

(vii) ${\mathrm{KMnO}}_4+{\mathrm{Na}}_2{\mathrm{S}}_2{\mathrm{O}}_3\underset{\text{ Medium }}{\overset{\text{ Alkaline }}{\to }}$

(viii) ${\mathrm{As}}_2{\mathrm{S}}_3+{\left({\mathrm{NH}}_4\right)}_2{\mathrm{S}}_2\to$

(ix) ${\mathrm{SO}}_{2\text{ (aq.) }}+{\mathrm{H}}_2\mathrm{S}\to$

(x) ${\mathrm{NaNO}}_3+$ Concentrated ${\mathrm{H}}_2{\mathrm{SO}}_4\stackrel{\Delta }{\to }$

(xi) ${\mathrm{K}}_3\left[\mathrm{Fe}(\mathrm{CN}{)}_6\right]+\mathrm{KI}\stackrel{{\mathrm{H}}^{+}}{\to }$