Which of the following leaves a black residue on the addition of ?

CHEMISTRY · Single correct · GCSE · Chemistry · Chemical Analysis · Chemical Analysis

Problem

Which of the following leaves a black residue on the addition of

\text{NH}_3

? (1)

\text{AgCl}

(2)

\text{PbCl}_2

(3)

\text{Hg}_2\text{Cl}_2

(4)

\text{HgCl}_2