A) \[KCl<CaC{{l}_{2}}<AlC{{l}_{3}}<SnC{{l}_{4}}\]
B) \[SnC{{l}_{4}}<AlC{{l}_{3}}<CaC{{l}_{2}}<KCl\]
C) \[AlC{{l}_{3}}<CaC{{l}_{2}}<KCl<SnC{{l}_{4}}\]
D) \[CaC{{l}_{2}}<SnC{{l}_{4}}<KCl<AlC{{l}_{3}}\]
Correct Answer: A
Solution :
| [a] |
| According to Fajan's rule |
| Covalent character\[\propto \]charge on cation or anion |
| Thus, the correct order is |
| \[{{K}^{+}}<C{{a}^{2+}}<A{{l}^{3+}}<S{{n}^{4+}}\] |
| \[KCl<CaC{{l}_{2}}<AlC{{l}_{3}}<SnC{{l}_{4}}\] |
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