Assertion : Zinc displaces copper from copper sulphate solution. Reason : The $E^{\circ}$ of zinc is $-0.76 \mathrm{~V}$ and that of copper is $+0.34 \mathrm{~V}$.

• Correct answer
  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.

Hence, the correct answer is option: 'A'.