Chemistry · 2024
JEE Main · 1 February 2024, Shift 1 · Q68
Which of the following reactions are disproportionation reactions? (A) Cu^+ → Cu^2++ Cu (B) 3 MnO_4^2-+4 H^+ → 2 MnO_4^-+ MnO_2+2 H_2 O (C) 2 KMnO_4…
Which of the following reactions are disproportionation reactions ?
(A)
$\displaystyle \mathrm{Cu}^{+} \rightarrow \mathrm{Cu}^{2+}+\mathrm{Cu}$
(B)
$\displaystyle 3 \mathrm{MnO}_4^{2-}+4 \mathrm{H}^{+} \longrightarrow 2 \mathrm{MnO}_4^{-}+\mathrm{MnO}_2+2 \mathrm{H}_2 \mathrm{O}$
(C)
$\displaystyle 2 \mathrm{KMnO}_4 \longrightarrow \mathrm{~K}_2 \mathrm{MnO}_4+\mathrm{MnO}_2+\mathrm{O}_2$
(D)
$\displaystyle 2 \mathrm{MnO}_4^{-}+3 \mathrm{Mn}^{2+}+2 \mathrm{H}_2 \mathrm{O} \longrightarrow 5 \mathrm{MnO}_2+4 \mathrm{H}^{+}$
Choose the correct answer from the options given below :
Official answer
From NTA’s final answer key for this paper.
(1)
(A) , (B)
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JEE Main 2024 Chemistry question, with the answer from NTA’s final answer key. Where our answers come from.