Highly selective Backlog Qs for JEE MainChemistryChemical Bonding and Molecular Structure
The charge/size ratio of a cation determines its polarizing power. Which one of the following sequences represents the increasing order of the polarizinig order of the polarizing power of the cationic species, K ⁺, Ca ²⁺, Mg ²⁺, Be ²⁺ ?
Options
- AMg ²⁺, Be ²⁺, K ⁺, Ca ²⁺
- BBe ²⁺, K ⁺, Ca ²⁺, Mg ²⁺
- CK ⁺, Ca ²⁺, Mg ²⁺, Be ²⁺
- DCa ²⁺, Mg ²⁺, Be ²⁺, K ⁺
Correct answer
C. K ⁺, Ca ²⁺, Mg ²⁺, Be ²⁺
Step-by-step solution
Higher the charge/size ratio, more is the polarizing power. K ⁺ < Ca ²⁺ < Mg ²⁺ < Be ²⁺ Hence, (C) is correct.