Question

Assertion : $LiCl$ is predominantly a covalent compound.
Reason : Electronegativity difference between $Li$ and $Cl$ 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
• C. If assertion is true but reason is false
• D. If both assertion and reason are false

Answer 1

Answer: (C)

$LiCl$ is covalent due to high polarising power of $L{i}^{+}$. According to Fajan 's rule, the smaller the size of cation and the larger the size of anion, greater is the polarising power and hence greater is the covalent character.