A) \[MnO_{4}^{-}\]
B) (b)\[C{{r}_{2}}O_{7}^{2-}\]
C) \[SO_{3}^{2-}\]
D) \[KI\]
Correct Answer: A
Solution :
[a] \[{{H}_{2}}{{O}_{2}}\] acts as a reducing agent only in presence of strong oxidising agents (i.e., \[Mn{{O}_{4}}^{-}\]) in acidic as well as alkaline medium. \[2KMn{{O}_{4}}+3{{H}_{2}}S{{O}_{4}}+5{{H}_{2}}{{O}_{2}}\xrightarrow[{}]{}\]\[{{K}_{2}}S{{O}_{4}}+2MnS{{O}_{4}}+8{{H}_{2}}O+5{{O}_{2}}\]You need to login to perform this action.
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