MCQOPTIONS
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| 1. |
On the basis of the electrochemical theory of aqueous corrosion, the reaction occurring at the cathode is [MP PET 1994; UPSEAT 2001] |
| A. | \[{{O}_{2\,(g)}}+4H_{(aq)}^{+}+4{{e}^{-}}\to 2{{H}_{2}}{{O}_{(l)}}\] |
| B. | \[F{{e}_{(s)}}\to Fe_{(aq)}^{2+}+2{{e}^{-}}\] |
| C. | \[Fe_{(aq)}^{2+}\to Fe_{(aq)}^{3+}+{{e}^{-}}\] |
| D. | \[{{H}_{2(g)}}+2OH_{(aq)}^{-}\to 2{{H}_{2}}{{O}_{(l)}}+2{{e}^{-}}\] |
| Answer» B. \[F{{e}_{(s)}}\to Fe_{(aq)}^{2+}+2{{e}^{-}}\] | |