Among the following the compound that is both paramagnetic and coloured isA. `K_(2)Cr_(2)O_(7)`B. `(NH_(4))_(2)(TiCl_(6))`C. `CoSO_(4)`D. `K_(3)[Cu(CN)_(4)]`

Among the following the compound that is both paramagnetic and coloure

1.	Among the following the compound that is both paramagnetic and coloured isA. `K_(2)Cr_(2)O_(7)`B. `(NH_(4))_(2)(TiCl_(6))`C. `CoSO_(4)`D. `K_(3)[Cu(CN)_(4)]`
Answer» Correct Answer - C In `(NH_(4))_(2)(TiCl_(6)),Ti^(4+)(3d^(0)4s^(0))` has no unpaired electrons. In `K_(2)Cr_(2)O_(7),Cr^(6+)(3p^(6)d^(0))` has no unpaired electrons. In `CoSO_(4),Co^(2+)(d^(7))` has unpaired electrons in d- orbitals, so it is both paramagnetic and coloured. In `K_(3)[Cu(CN)_(4)],Cu^(+)(3d^(10))`, no unpaired electron.

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Among the following the compound that is both paramagnetic and coloured isA. `K_(2)Cr_(2)O_(7)`B. `(NH_(4))_(2)(TiCl_(6))`C. `CoSO_(4)`D. `K_(3)[Cu(CN)_(4)]`

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