Assertion : If $\lambda^o_{Na^{+}}$ and $\lambda^o_{Cl^{-}}$ are molar limiting conductivity of sodium and chloride ions respectively,then the limiting molar conductivity for sodium chloride is given by the equation :
$\Lambda^o_{NaCl} = \lambda^o_{Na^{+}} + \lambda^o_{Cl^{-}}$
Reason : This is according to Kohlrausch law of independent migration of ions.

• A
  If both Assertion and Reason are correct and the Reason is a correct explanation of the Assertion.
• B
  If both Assertion and Reason are correct but Reason is not a correct explanation of the Assertion.
• C
  If the Assertion is correct but Reason is incorrect.
• D
  If both the Assertion and Reason are incorrect.