The quantity of electricity needed to separately electrolyze 1 M solution of ZnSO4, AlCl3 and AgNO3 completely is in the ratio of

Question

The quantity of electricity needed to separately electrolyze 1 M solution of ZnSO4, AlCl3 and AgNO3 completely is in the ratio of (A) 2: 3: 1 (B) 2: 1: 1 (C) 2: 1: 3 (D) 2: 2: 1

Tardigrade Admin · Accepted Answer

From the Faraday's IInd law, we know that

W \propto Z i t, W \propto \frac{E}{96500} i t

or it

\propto \frac{1}{E}

or electricity

\propto \frac{1}{E}

Thus, the amount of electricity required for

Z n S O_{4} A lC l_{3}

and

A g N O_{3}

is in the ratio of

2 : 3 : 1

.
(Here,

2, 3

and

1

are the valencies of metal atom in the given compounds). Alternatively In

Z n S O_{4}

Thus, the ratio of amounts of electricity required is

2 : 3 : 1

Q. The quantity of electricity needed to separately electrolyze $1 M$ solution of $Z n S O_{4}, A lC l_{3}$ and $A g N O_{3}$ completely is in the ratio of

2 : 3 : 1

2 : 1 : 1

2 : 1 : 3

2 : 2 : 1

Q. The quantity of electricity needed to separately electrolyze 1M solution of ZnSO4​,AlCl3​ and AgNO3​ completely is in the ratio of

2 : 3 : 1

2 : 1 : 1

2 : 1 : 3

2 : 2 : 1

Q. The quantity of electricity needed to separately electrolyze $1 M$ solution of $Z n S O_{4}, A lC l_{3}$ and $A g N O_{3}$ completely is in the ratio of