A salt,which on heating with conc. H_2SO_4 gi | vedclass

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(A) When a salt containing iodide $(I^-)$ is heated with concentrated $H_2SO_4$,it produces hydrogen iodide $(HI)$.$KI + H_2SO_4 \rightarrow KHSO_4 +

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Iodide

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(A) When a salt containing iodide $(I^-)$ is heated with concentrated $H_2SO_4$,it produces hydrogen iodide $(HI)$.$KI + H_2SO_4 \rightarrow KHSO_4 + HI$Concentrated $H_2SO_4$ acts as a strong oxidizing agent and oxidizes $HI$ to iodine $(I_2)$ gas,which appears as violet vapours.$2HI + H_2SO_4 \rightarrow I_2 + SO_2 + 2H_2O$Therefore,the salt is an iodide.

$A$ salt,which on heating with conc. $H_2SO_4$ gives violet vapours,is

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