ElectrochemistryHard
Question
A volume of 100 ml of a buffer of 1 M – NH3 and 1 M – NH4+ is placed in two half-cells connected by a salt bridge. A current of 1.5 A is passed through the cell for 20 min. If electrolysis of water takes place only and the electrode reactions are:
Right: 2H2O + O2 + 4e → 4OH− and Left: 2H2O → 4H+ + O2 + 4e, then, the pH of the
Options
A.right electrode will increase
B.left electrode will increase
C.both electrode will increase
D.both electrode will decrease
Solution
PH of right electrode will increase due to formation of OH– ion.
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