Question

If3 Faradays of electricity is passed through the
solutions of AgNO,, CuSo, and AuCl,, the
molar ratio
of the cations deposited at the cathode
will be:
1) 1:1:1
2) 1:2:3
3) 3:2:11
4) 6:3:2​

Answer 1

Answer:

12th

Chemistry

Electrochemistry

Electrolytic Cells and Electrolysis

If three Faraday of electri...

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Asked on December 27, 2019 by

Anushka Ann

If three Faraday of electricity is passed through the solutions of AgNO

3

,CuSO

4

and AuCl

3

, the molar ratio of the metals deposited at the cathode will be:

MEDIUM

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ANSWER

Cu metal deposited as Cu

2+

ion

Ag metal deposited as Ag

+

ion

Au metal deposited as Au

3+

ion

∴ to form 1 atom of Cu, Ag and Au

↓ ↓ ↓

2e

−

1e

−

3e

−

if 3 mol Faraday of electricity is passed,

then

1 mol of Au, 3 mol of Ag and 3/2 mol of Cu

i.e. Ag,Cu,Au

3:

2

3

:1

6:3:2

Hope this answer is helpful for u.