Redox Reactions · JEE Main previous year questions

2014 1 question

1. Q652014 · 6 Apr 2014 · Shift 1

   In which of the following reactions ${\mathrm{H}}_2{\mathrm{O}}_2$ acts as a reducing agent? 1. ${\mathrm{H}}_2{\mathrm{O}}_2+2{\mathrm{H}}^{+}+2{\mathrm{e}}^{-}\to 2{\mathrm{H}}_2\mathrm{O}$ 2. ${\mathrm{H}}_2{\mathrm{O}}_2-2{\mathrm{e}}^{-}\to {\mathrm{O}}_2+2{\mathrm{H}}^{+}$ 3. ${\mathrm{H}}_2{\mathrm{O}}_2+2{\mathrm{e}}^{-}\to 2O{\mathrm{H}}^{-}$ 4. ${\mathrm{H}}_2{\mathrm{O}}_2+2O{\mathrm{H}}^{-}-2{\mathrm{e}}^{-}\to {\mathrm{O}}_2+2{\mathrm{H}}_2\mathrm{O}$

   1. A.1, 2
   2. B.3, 4
   3. C.1, 3
   4. D.2, 4
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   Answer: D