Which of the following will act as cathode when connected to standard hydrogen electrode which has E° value given as zero?
(i) Zn²⁺/Zn, E° = −0.76 V
(ii) Cu²⁺/Cu, E° = +0.34 V
(iii) Al³⁺/Al, E° = −1.6

Question

Which of the following will act as cathode when connected to standard hydrogen electrode which has E° value given as zero?
(i) Zn²⁺/Zn, E° = −0.76 V
(ii) Cu²⁺/Cu, E° = +0.34 V
(iii) Al³⁺/Al, E° = −1.66 V
(iv) Hg²⁺/Hg, E° = +0.885 V

Accepted Answer

(ii) and (iv)

Answer

(i) and (ii)

Answer

(i) and (iii)

Answer

(i), (ii), (iii) and (iv)

STANDARD Chemistry Standard Electrode Potentials Multiple Correct Question

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