question_answer

Some half-cell reaction and their standard potentials are given as below \[MnO_{4}^{-}(aq)+8{{H}^{+}}(aq)+5{{e}^{-}}\xrightarrow[{}]{{}}\]\[M{{n}^{2+}}(aq)+4{{H}_{2}}O(l);\]                 \[{{E}^{0}}=-1.51\text{V}\] \[C{{r}_{2}}O_{7}^{2-}(aq)+14{{H}^{+}}(aq)+6{{e}^{-}}\xrightarrow[{}]{{}}\] \[2C{{r}^{3+}}(aq)+7{{H}_{2}}O(l);\]                        \[{{E}^{0}}=-1.38\text{V}\] \[F{{e}^{3+}}(aq)+{{e}^{-}}\xrightarrow[{}]{{}}F{{e}^{2+}}(aq);\]               \[{{E}^{0}}=0.77\,\text{V}\] \[C{{l}_{2}}(g)+2{{e}^{-}}\xrightarrow[{}]{{}}2C{{l}^{-}}(aq);\]     \[{{E}^{0}}=1.40\,\text{V}\] Identify the incorrect statement.

A)  \[MnO_{4}^{-}\]is weaker oxidising agent than \[C{{l}_{2}}\]          

B)  \[C{{r}_{2}}O_{7}^{2-}\] is weaker oxidising agent than \[C{{l}_{2}}\]

C)  \[MnO_{4}^{-}\] is stronger oxidising agent than \[F{{e}^{3+}}\]

D)  \[C{{r}_{2}}O_{7}^{2-}\]is weaker oxidising agent than\[MnO_{4}^{-}\]