When a salt is treated with sodium hydroxide solution, it gives g… | JEE Main 2025 Chemistry PYQ

MCQEasyJEE Main 2025 · 7 April, Shift 1Salt Analysis (Cations & Anions)

When a salt is treated with sodium hydroxide solution, it gives gas X. On passing gas X through reagent Y, a brown coloured precipitate is formed. X and Y respectively, are:

A
X = $\text{NH}_3$ and Y = $\text{HgO}$
B
X = $\text{NH}_3$ and Y = $\text{K}_2\text{HgI}_4 + \text{KOH}$
C
X = $\text{NH}_4\text{Cl}$ and Y = $\text{KOH}$
D
X = $\text{HCl}$ and Y = $\text{NH}_4\text{Cl}$

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