A) \[{{A}_{2}}+{{B}_{2}}2AB\]
B) \[180\text{ }kJ\,mo{{l}^{-1}}\]
C) \[200\,kJ\,mo{{l}^{-1}}\]
D) \[100\text{ }kJ\text{ }mo{{l}^{-1}}.\]
Correct Answer: C
Solution :
Higher the charge/size ratio, more is the polarizing power. \[\therefore \] \[{{K}^{+}}<C{{a}^{2+}}<M{{g}^{2+}}<B{{e}^{2+}}\]
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