Question

What happens if factors in column A are increased?

$\begin{array}{cc}A& B\\ \text{A) Cation size}& I)\text{More Covalent}\\ \text{B) Cation charge}& \text{II) Less ionic}\\ \text{C) Anion Size}& \text{III) More Covalent}\\ \text{D) Anion Charge}& \text{IV) More ionic}\end{array}$

• A. C - IV, B - I, A - III or I, D - III or II
• B. A - IV, B - II, C - III or I, D - III or I
• C. B - IV, C - II, A - III or I, D - III or I
• D. D - IV, B - II, C - III or I, A - III or I

Answer 1

The correct option is B

A - IV, B - II, C - III or I, D - III or I

From Fajan's Rule,

Cation size $\alpha$ $\frac{1}{polarizingpower}$ $\Rightarrow$ cation size $\alpha$ ionic charcter.

Cation charge $\alpha$ polarizing power $\Rightarrow$ cation charge $\alpha$ $\frac{1}{Ioniccharcter}$

Anion size $\alpha$ Polarizability $\Rightarrow$ Anion size $\alpha$ Covalent charcter

Anion charge $\alpha$ Polarizability $\Rightarrow$ Anion charge $\alpha$ Covalent charcter