Question

Varsha placed a copper wire in silver nitrate solution as shown in the figure.
Which of the following represents the correct observation?
A) The colour of the solution turned blue and precipitate of sold silver was obtained
B) Colour of solution turned green and copper turned blue.
C)There was no change in the colour of solution or colour of wire.
D) Colour of the solution become no change in the colour of copper wire.​

Answer 1

Answer:

A) The colour of the solution turned blue and precipitate of sold silver was obtained

Explanation:

Copper is more reactive than silver. Hence

when copper wire is dipped in silver nitrate

solution it displaces silver from silver

nitrate (AgN03 ) solution forming copper

nitrate which is bluish green in color.

This is a displacement reaction.