Question

Copper and silver voltameters are connected in series. If 0.8 gm of copper is deposited in copper voltameter, then the amount of silver deposited in silver voltameter will be (Chemical equivalents of copper and silver are 32 and 108 respectively).

• A. 0.27 kg
• B. 2.7 kg
• C. 27 gm
• D. 2.7 gm

Answer 1

The correct option is D 2.7 gm

Given : $W_{Cu}=0.8$ gm $E_{Cu}=32$ gm $E_{Ag}=108$ gm

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

$\therefore$ $\frac{W_{Ag}}{108}=\frac{0.8}{32}$ $⟹W_{Ag}=2.7$ gm