From the following information `X + H_2 SO_4 rarr Y` (a colourless and – InterviewSolution

InterviewSolution

1.	From the following information `X + H_2 SO_4 rarr Y` (a colourless and irritating gas) `Y + K_2 Cr_2 O_7 + H_2 SO_4 rarr` green coloured solution Identify the pair `X` and `Y`.A. `Cl^(Ө), HCl`B. `So_3^(2-),SO_2`C. `S^(2-), H_2 S`D. `CO_3^(2-), CO_2`
Answer» Correct Answer - B `underset((X)) (SO_(3)^(2-)) + 2H^(oplus) rarr underset((Y)) (SO_2) + H_2 O` `3 SO_2 + K_2 Cr_2 O_7 + H_2 SO_4 rarr K_2 SO_4 + underset("Green coloured solution") (Cr_2(SO_4)_3 + H_2 O)`.

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