Offline paper
Chemistry · 2014
JEE Main 2014 · 2014-04-06 Offline · Q45
In which of the following reactions H_2 O_2 acts as a reducing agent? (a) H_2 O_2+2 H^++2 e^- → 2 H_2 O (b) H_2 O_2-2 e^- → O_2+2 H^+ (c) H_2 O_2+2…
In which of the following reactions $\displaystyle \mathrm{H}_2 \mathrm{O}_2$ acts as a reducing agent ?
(a)
$\displaystyle \mathrm{H}_2 \mathrm{O}_2+2 \mathrm{H}^{+}+2 \mathrm{e}^{-} \rightarrow 2 \mathrm{H}_2 \mathrm{O}$
(b)
$\displaystyle \mathrm{H}_2 \mathrm{O}_2-2 \mathrm{e}^{-} \rightarrow \mathrm{O}_2+2 \mathrm{H}^{+}$
(c)
$\displaystyle \mathrm{H}_2 \mathrm{O}_2+2 \mathrm{e}^{-} \rightarrow 2 \mathrm{OH}^{-}$
(d)
$\displaystyle \mathrm{H}_2 \mathrm{O}_2+2 \mathrm{OH}^{-}-2 \mathrm{e}^{-} \rightarrow \mathrm{O}_2+2 \mathrm{H}_2 \mathrm{O}$
Official answer
(4)
(b) , (d)
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JEE Main 2014 Chemistry question, with the answer from NTA’s final answer key. Where our answers come from.