A filter paper soaked in salt X turns brown when exposed to HNO3 vapor

1.	A filter paper soaked in salt X turns brown when exposed to HNO3 vapor. The salt X is – (A) KCl (B) KBr (C) KI (D) K2SO4
Answer» Correct option (C) KI Explanation: Filter paper soaked with KI turns brown when exposed to HNO3 vapour due to liberation of iodine. The reaction is as follows : 6KI + 8HNO₃ → 6KNO₃ + 4H₂O + 2NO + 3I₂

A filter paper soaked in salt X turns brown when exposed to HNO3 vapor. The salt X is – (A) KCl (B) KBr (C) KI (D) K2SO4

Answer»

Correct option (C) KI

Explanation:

Filter paper soaked with KI turns brown when exposed to HNO3 vapour due to liberation of iodine. The reaction is as follows :

6KI + 8HNO₃ → 6KNO₃ + 4H₂O + 2NO + 3I₂

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A filter paper soaked in salt X turns brown when exposed to HNO3 vapor. The salt X is – (A) KCl (B) KBr (C) KI (D) K2SO4

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