Question

50 ml of a buffer of 1 M NH₃ and 1 M NH₄ ⁺ are placed in two volatic cells separately. A current of 3.0 amp is passed through both cells for 10 min. If electrolysis of water takes place as

2H₂O + O₂ + 4e^– →4OH^– (R.H.S.) 

2H₂O →4H⁺ + O₂ + 4e^– (L.H.S.)

then pH of the 

(1) L.H.S. will increase 

(2) R.H.S. will increase 

(3) R.H.S. will decrease 

(4) Both side will increase

Answer 1

Correct option (2) R.H.S. will increase

Explanation:

Because of the reactions of electrolysis, [H⁺] concentration will decrease as a result of which pH will increase.