$\mathrm{Cl}-\mathrm{O}$ bond order in perchlorate ion is ___

$\mathrm{Cl}-\mathrm{O}$ bond order in perchlorate ion is ___
  1. 1.75
  2. 1.85
  3. 2.75
  4. 1.80

Solution



Perchlorate ion $\left(\mathrm{ClO}_{4}^{-}ight)$ have the following possible resonating structures:

$\mathrm{Cl}-\mathrm{O}$ bond order $=7 / 4=1.75$

Asked in: JEE-TOPICTESTS-CHEMISTRY

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