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Why is KO2 paramagnetic?...

Why is `KO_2` paramagnetic?

Text Solution

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The superoxide `O_2^-` is paramagnetic because of one unpaired electron in `pi^* 2p` molecular orbital.
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Knowledge Check

  • KO_(2) exhibits paramagnetic behaviour. This is due to paramagnetic nature of

    A
    `KO^(-)`
    B
    `K^(+)`
    C
    `O_(2)`
    D
    `O_(2)^(-)`

  • Compound that is both paramagnetic and coloured is

    A
    `K_(2)Cr_(2)O_(7)`
    B
    `(NH_(4))_(2)[TiCl_(6)]`
    C
    `VOSO_(4)`
    D
    `K_(3)[Cu(CN)_(4)]`

  • Compound that is both paramagnetic and coloured is

    A
    `K_2Cr_2O_7`
    B
    `[TiCl_6].(NH_4)_2`
    C
    `VOSO_4`
    D
    `K_3[Cu(CN)_4]`

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