question_answer 1)

  Which of the following equations depicts reducing nature of\[{{H}_{2}}{{O}_{2}}\]? (a) \[2{{[Fe{{(CN)}_{6}}]}^{4-}}2{{H}^{+}}+{{H}_{2}}{{O}_{2}}\to 2{{[Fe{{(CN)}_{6}}]}^{3-}}+2{{H}_{2}}O\] (b)  \[{{I}_{2}}+{{H}_{2}}{{O}_{2}}+2O{{H}^{-}}\to 2{{I}^{-}}2{{H}_{2}}O+{{O}_{2}}\] (c) \[M{{n}^{2+}}+{{H}_{2}}{{O}_{2}}\to M{{n}^{2+}}+2O{{H}^{-}}\] (d) \[PbS+4{{H}_{2}}{{O}_{2}}\to PbS{{O}_{4}}+4{{H}_{2}}O\]

Answer:

  (b)\[{{I}_{2}}+{{H}_{2}}{{O}_{2}}+O{{H}^{-}}\to 2{{I}^{-}}+2{{H}_{2}}O+{{O}_{2}}\] \[O.N.0\xrightarrow[\begin{smallmatrix}  Decrease\,in\,Oxidation \\  number\,(Reduction) \end{smallmatrix}]{}-1\]