Question

A silver and a zinc voltameters are connected in series. A current is passed through them for time t. If W gm zinc is liberated, then the weight of sliver deposited will be nearly

• A. 3.3 W
• B. 2.4 W
• C. 1.7 W
• D. W

Answer 1

Answer: (A)

3.3 W

Equivalent weight of Zinc $E_{Zn}=\frac{65.4}{2}=32.7$ gm

Equivalent weight of Ag $E_{Ag}=\frac{108}{1}=108$ gm

Using $\frac{W_{Ag}}{E_{Ag}}=\frac{W_{Zn}}{E_{Zn}}$

$\therefore$ $\frac{W_{Ag}}{108}=\frac{W}{32.7}$ $⟹W_{Ag}=3.3$ $W$