Saved Bookmarks
| 1. |
Give reaction occur of cathode during electrolysis of C_(2)H_(5)COO^(-)Na^(+). |
|
Answer» SOLUTION :Positive `NA^(+)` ion is moving towards cathode (NEGATIVE electrode) but reduction of `H_(2)O` is EASY with respect to `Na^(+)`, so on cathode surface `H_(2)` is produced on reduction of water. (a) `2Na_((aq))^(+) + 2H_(2)O_((l)) + 2e^(-) rarr 2H + 2Na^(+)` (b) and `2overset(.)(H) rarr H_(2)` (b) `2Na_((aq))^(+) + 2H_(2)O_((l)) + 2e^(-) rarr 2overset(.)(H) uarr + 2Na_((aq))^(+) + 2OH_((aq))^(-)` `2Na_((aq))^(+) + 2H_(2)O_((l)) + 2e^(-) rarr underset("(Reduction reaction on cathode)")(H_(2) + 2(Na^(+)OH^(-))_((aq)))` |
|