Question

When a copper wire is dipped in silver nitrate solution, there is no change in the colour of the solution. Copper cannot displace silver from its salt solution.

• A. If both assertion and reason are true and reason is the correct explanation of assertion
• B. If both assertion and reason are true but reason is not the correct explanation of assertion
• C. If assertion is true but reason is false
• D. If both assertion and reason are false

Answer 1

Answer: (D)

If both assertion and reason are false

Answer 2

When a copper wire is dipped in silver nitrate solution it turns blue. $Cu$ is more reactive than $Ag$ hence displaces silver from its salt solution.