Which of the following reactions are disproportionation reaction? (a) 2 Cu^+ → Cu^2++ Cu^0 (b) 3 MnO_4^2-+4 H^+ → 2 MnO_4^-+ MnO_2+2 H_2 O (c) 2 KMnO_4 → Δ K_2 MnO_4+ MnO_2+ O_2 (d) 2 MnO_4^-+3 Mn^2++2 H_2 O → 5 MnO_2+4 H^ Select the correct option from the following:

Which of the following reactions are disproportionation reaction? 2 Cu^+ → Cu^2++Cu^0 3…

Chemistry · 2019

NEET 2019 · 5 May · Code P1 · Q50

Which of the following reactions are disproportionation reaction ?

(a)

$\displaystyle 2 \mathrm{Cu}^{+} \rightarrow \mathrm{Cu}^{2+}+\mathrm{Cu}^0$

(b)

$\displaystyle 3 \mathrm{MnO}_4^{2-}+4 \mathrm{H}^{+} \rightarrow 2 \mathrm{MnO}_4^{-}+\mathrm{MnO}_2+2 \mathrm{H}_2 \mathrm{O}$

(c)

$\displaystyle 2 \mathrm{KMnO}_4 \xrightarrow{\Delta} \mathrm{~K}_2 \mathrm{MnO}_4+\mathrm{MnO}_2+\mathrm{O}_2$

(d)

$\displaystyle 2 \mathrm{MnO}_4^{-}+3 \mathrm{Mn}^{2+}+2 \mathrm{H}_2 \mathrm{O} \rightarrow 5 \mathrm{MnO}_2+4 \mathrm{H}^{\oplus}$

Select the correct option from the following :