QJEEM25Ch2cf8: JEE Main 2025 Chemistry - Class 12 JEEM25Ch2cf8 Solution: Identify the inorganic sulphides that are yellow in colour :…

We want to identify which among the listed sulfides are yellow in color:

$\mathbf{(NH_4)_2S}$

Ammonium sulfide is typically encountered as an aqueous solution that can be colorless to slightly yellowish in solution form. It is not known as a distinct “yellow sulfide” compound in the same sense as solid colored sulfides like orpiment (see below).

$\mathbf{PbS}$ (lead(II) sulfide)

$\text{PbS}$ (Galena) is well-known to be black or grayish‐black in color.

$\mathbf{CuS}$ (copper(II) sulfide)

$\text{CuS}$ is black (covellite).

$\mathbf{As_2S_3}$ (arsenic(III) sulfide)

$\text{As}_2\text{S}_3$ (orpiment) is characteristically yellow.

$\mathbf{As_2S_5}$ (arsenic(V) sulfide)

$\text{As}_2\text{S}_5$ is also typically a yellow sulfide.

Hence, among the options given,

$\mathbf{(D)}\;As_2S_3$ and

$\mathbf{(E)}\;As_2S_5$

are the two yellow inorganic sulfides.

Correct Choice

$\boxed{\text{(D) and (E) only.}}$