Assertion : $\mathrm{LiCl}$ is predominantly a covalent compound. Reason : Electronegativity difference between $\mathrm{Li}$ and $\mathrm{Cl}$ is too small.

• 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.
• Correct answer
  C

  If assertion is true but reason is false.
• D

  If both assertion and reason are false.

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