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Account for the following : (i) PCl_(5) is more covalent than PCl_(3). (ii) Iron on reaction with HCl forms FeCl_(2) and not FeCl_(3). (iii) The two O-O bond lengths is the ozone molecule are equal. |
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Answer» Solution :(i) Because `+5` oxidation STATE is more COVALENT than `+3`/ HIGH charge to size ratio/high polarizing power. (II) Because `HCl` is a mild oxidising agnet/formation of HYDROGEN gas prevents the formation of `FeCl_(3)`. (iii) Because of resonance in `O_(3)` molecule. |
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