A substance on treatment with dil.H $_{2} \mathrm{SO}_{4}$ liberates a colourless gas which produces (I)…

A substance on treatment with dil.H $_{2} \mathrm{SO}_{4}$ liberates a colourless gas which produces
(I) turbidity with baryta water and
(II) turns acidified dichromate solution green. The reaction indicates the presence of
  1. $\mathrm{CO}_{3}^{2-}$
  2. $\mathrm{S}^{2-}$
  3. $\mathrm{SO}_{3}^{2-}$
  4. $\mathrm{NO}_{3}^{-}$

Solution

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Asked in: JEE-TOPICTESTS-CHEMISTRY

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