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Q.
$ Cl—O $ bond order in perchlorate ion is
AMUAMU 2012The p-Block Elements - Part2
Solution:
Perchlorate ion $(ClO_4^-)$ exists in fiollowing racemic forms
Thus, $Cl—O$ bond order
$ = \frac{\text{Total no. of bonds between two atoms in all resonating forms}}{\text{No. of resonating structures}}$
$ = \frac{2\times 3 +1}{4} = \frac{7}{4}$
$ = 1.75$
