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Brine is electrolysed by using inert electrodes. The reaction at anode is ________.
Brine is electrolysed by using inert electrodes. The reaction at anode is ________.
CBSE | Chemistry | Class 12 | Exercise 1 | General Principles and Processes of Isolation of Elements | NCERT Exemplar
Brine is electrolysed by using inert electrodes. The reaction at anode is ________.

(i) Cl–(aq.) →1/2Cl2 (g) + e– ; E°cell = 1.36V

(ii) 2H2O(l) → O2(g0 + 4H+ + 4e- ; E°cell = 1.23V

(iii) Na+(aq) + e- → Na(s) ; E°cell = 2.71V

(iv) H+(aq) + e- → 1/2H2(g) ; E°cell = 0.00V

 

Correct Answer: (i) Cl–(aq.) →1/2Cl2 (g) + e– ; E°cell = 1.36V

Explanation: 

Reaction Involved – Cl– (aq.) →1/2Cl2 (g) + e–

E°cell = 1.36V

i

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