1.

The charge/size ratio of a cation determines its polarizing power. Which one of the following sequences represents the increasing order of the polarizing power of the cationic species, `K^+,Ca^(2+), Mg^(2+), Be^(2+)`A. `Mg^(2+) lt Be^(2+) lt K^(+) lt Ca^(2+)`B. `Be^(2+) lt K^(+) lt Ca^(2+) lt Mg^(2+)`C. `K^(+) lt Ca^(2+) lt Mg^(2+) lt Be^(2+)`D. `Ca^(2+) lt Mg^(2+) lt Be^(2+) lt K^(+)`

Answer» Correct Answer - C
Higher the charge/size ratio, more is the polarizing power. `:. K^(+) lt Ca^(2+) lt Mg^(2+) lt Be^(2+)`


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