Assertion : Lithium fluoride is most covalent in nature.
Reason : Small anion can be easily distorted.

Options

A. If both (A) and (R) are correct and (R) is the correct explanation of (A).
B. If both (A) and (R) are correct, but (R) is not the correct explanation of (A).
C. If (A) is correct, but (R) is incorrect.
D. If both (A) and (R) are incorrect.

Answer

D

Explanation

`Li^(+)` ion is very small in size and has high tendency to distort electron cloud around the negative halide ion. Anion with large size can be easily distorted hence among halides, lithium iodide is the most covalent in nature.