\( \mathrm{H}_{2} \mathrm{~S} \) and \( \mathrm{SO}_{2} \) can be distinguished by: (a) Litmus p...

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\( \mathrm{H}_{2} \mathrm{~S} \) and \( \mathrm{SO}_{2} \) can be distinguished by:
(a) Litmus paper
(b) \( \mathrm{MnO}_{4}^{-} / \mathrm{H}^{+} \)
(c) \( \left(\mathrm{CH}_{3} \mathrm{COO}\right)_{2} \mathrm{~Pb} \)
(d) None of these
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