Q. The charge/size ratio of a cation determines its polarizing power. Which one of the following sequences represents the increasing order of the polarizing order of the polarizing power of the cationic species, K+, Ca++, Mg2+, Be2+?
- Ca2+ < Mg2+ < Be+ < K+
- Mg2+ < Be2+ < K+ < Ca2+
- Be2+ < K+ < Ca2+ < Mg2+
- K+ < Ca2+ < Mg2+ < Be2+
Answer: K+ < Ca2+ < Mg2+ < Be2+
