Question

In the crystal of which of the following ionic compounds would you expect maximum distance between centers of:

• A. $LiF$
• B. $CsF$
• C. $CsI$
• D. $LiI$

Answer 1

The correct option is C $CsI$

$\text{Solution:- Among the given cations, The ionic radius}$

$\text{of}{Cs}^{+}\text{is highest and among the given}$

$\text{anions, ionic radius of}{I}^{-}\text{is highest}$

$\text{Therefore the maximum distance between}$

$\text{the centers of cations and anions occurs}$

$\text{in CsI.}$

$\text{hence the correct is (c)}$