Question

Find out the correct order of ionic character in the following molecules
(i) $S{O}_2$
(ii) $K_{2}O$
(iii) $N_2$
(iv) $LiF$

• A. (iv) > (ii) > (iii) > (i)
• B. (iv) >(ii) >(i) > (iii)
• C. (ii) > (iv) > (i) > (iii)
• D. (ii) > (iv) > (iii) > (i)

Answer 1

Answer: (B)

Ionic character in a molecule increases with increasing electronegativity difference in bonded atoms.
$\underset{\begin{array}{c}\text{ Polar }\\ \text{ (tonic bond) }\end{array}}{\underbrace{LiF>K_{2}O>S{O}_3}}>\underset{\begin{array}{c}\text{ Non-polar }\\ \text{ (Covalent bond) }\end{array}}{\underbrace{N_2}}$