JEE Main Chemistry question

The correct order of decreasing ionic nature of lead dihalides is:

(A)PbF_2 > PbCl_2 > PbBr_2 > PbI_2Correct
(B)PbF_2 > PbBr_2 > PbCl_2 > PbI_2
(C)PbF_2 < PbCl_2 > PbBr_2 < PbI_2
(D)PbI_2 > PbBr_2 > PbCl_2 > PbF_2

Answer: (A)

Solution

Ionic character of a halide decreases as the halide ion becomes larger and more polarisable (Fajan's rules), so for lead dihalides, ionic character decreases in the order

See the full step-by-step solution

Create a free account to read the complete working, and practise questions like this in a timed test.

Create a free account

Question ID VK-138732