Chemistrymedium · Past Paper
A student adds a piece of copper to a solution of silver nitrate. What will be observed?
ANo reaction occurs
BThe solution turns blue and silver crystals form
CThe solution turns green and oxygen gas evolves
DA white precipitate of copper nitrate forms
✓ Correct Answer: B — The solution turns blue and silver crystals form
Copper is more reactive than silver; it displaces silver (forming silver metal) and creates blue copper(II) nitrate solution.
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