Question

Write the steps in sequence for electroplating of brass spoon with silver.
(1) `k^(+)` and `H^(+)` ions are not dishcharged at cathode due to higher discharge potential than `Ag^(+)`.
(2) Silver gets deposited on brass spoon.
(3) A highly cleaned brass spoon which has to be electroplated is taken.
(4) Due to electrolytic dissociation, `Ag^(+), K^(+), H^(+), OH^(-)` and `CN^(-)` ions are formed.
A. 3 4 1 2
B. 1 4 3 2
C. 4 1 3 2
D. 1 4 2 3

Answer 1

(i) A highly cleared brass spoon which has to be electroplated is taken
(ii) Due to electrolytic dissociation, `Ag^(+), K^(+), H^(+), OH^(-)` and `CN^(-)` ions are formed.
(iii) `K^(+)` and `H^(+)` ions are not discharged at cathode due to higher discharge potential than Ag.
(iv) Silver gets deposited on brass spoon.