InterviewSolution
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InterviewSolution
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A and B are two salts. A reacts both with dil `H_2SO_4` and conc. `H_2SO_4` to give reddish brown vapours. However, B reacts only with conc. `H_2SO_4` to give similar vapours. Hence A and B are respectivelyA. NaBr, `NaNO_3`B. `NaNO_3`, NaBrC. `NaNO_2`, NaBrD. NaBr, `NaNO_2` |
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Answer» Correct Answer - C `NaNO_2` gives `NO_2` (brown vapours) both with dil. as well as conc. `H_2SO_4`. However NaBr gives `Br_2` (brown vapours) only with conc. `H_2SO_4`. This is because halides can be decomposed only by conc `H_2SO_4` and not by dil. `H_2SO_4` |
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