MCQ
What electrolyte is used to electroplate silver onto a spoon?
- APure water.
- ✓Silver nitrate.
- CCopper sulfate.
- DAcidified water.
✓
Answer
Correct option: B.
Silver nitrate.
In silver plating, the object $($eg.spood$)$ to be plated is made the cathode of an electrolytic cell. The anode is bar of silver metal and the electrodyte must contain $\text{Ag} +$ ions $($i.e. $\text{AgNO}_3),$ so that when the direct current is passed through the cell, positive $\text{(Ag}^+)$ ions move towards the negative anode $($spoon$)$ where they are neutralized by $e−$ and stick to spoon as silver metal.
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