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Sodium chloride on heating with conc. H2...

Sodium chloride on heating with conc. `H_2SO_4` in presence of ‘A’ gives a gas ‘B’ with pungent smell. The gas when passed over solid ‘C’ , compound ‘D’ is formed , which is used as a fungicide. Identify A to D giving equations.

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USHA PUBLICATION-PRACTICE PAPER-PRACTICE PAPER
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