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| 1. |
Why are pentahalides more covalent than trihalides? |
| Answer» Solution :According to FAJAN's RULES, covalent character increases with decrease in size of covalent `E^(5+)` (E=element of group 15) is smaller than `E^(3+)`. Therefore pentahalides in which element is in `+5`oxidation STATE are more covalent than trihalides m which the element is in `+3` oxidation state. | |