Brown ring test is made for: (a) \( \mathrm{NO}_{3}^{-} \) (b) \( \mathrm{Cl} \) (c) \( \mathrm{...

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Brown ring test is made for:
(a) \( \mathrm{NO}_{3}^{-} \)
(b) \( \mathrm{Cl} \)
(c) \( \mathrm{I} \)
(d) \( \mathrm{Br}^{-} \)
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