Arrange the following compounds in the icreasing order of bond length of O-O bond `O _(2), O _(2) [AsF_(6)] ,KO _(2)` and peroxide ion. Explain on the basis of ground state electronic configuration of dioxygen in these molecules.

Explanation

To arrange the compounds \( O_2 \), \( O_2[AsF_6] \), \( KO_2 \), and the peroxide ion in increasing order of the bond length of the O-O bond, we will analyze the bond orders of each species based on their electronic configurations.

### Step 1: Determine the electronic configurations

1. **For \( O_2 \)**:
- Total electrons = 16 (8 from each oxygen atom)
- Electronic configuration:
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