Which of the following compounds has colour but no unpaired electro...

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Which of the following compounds has colour but no unpaired electrons ?
\( \mathrm{P} \)
(1) \( \mathrm{KMnO}_{4} \)
(2) \( \mathrm{K}_{2} \mathrm{MnO}_{4} \)
(3) \( \mathrm{MnSO}_{4} \)
(4) \( \mathrm{MnCl}_{2} \)
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