Identify the inorganic sulphides that are yellow in colour : (A) $$\mathrm{(NH_4)_2S}$$ (B) $$\mathrm{PbS}$$ (C) $$\mathrm{CuS}$$ (D) $$\mathrm{As_2S_3}$$ (E) $$\mathrm{As_2S_5}$$ Choose the correct answer from the options given below :

We need to identify which inorganic sulphides are yellow in colour.

(A) $$(NH_4)_2S$$ (Ammonium sulphide): Ammonium sulphide is a yellow-colored compound in solution. Yellow.

(B) $$PbS$$ (Lead sulphide): Lead(II) sulphide is black in colour. It is the black precipitate formed in qualitative analysis.

(C) $$CuS$$ (Copper sulphide): Copper(II) sulphide is black in colour.

(D) $$As_2S_3$$ (Arsenic trisulphide): Arsenic trisulphide is yellow in colour. It is precipitated in Group IIB of qualitative analysis.

(E) $$As_2S_5$$ (Arsenic pentasulphide): Arsenic pentasulphide is also yellow in colour.

The yellow sulphides are (A), (D), and (E). The answer is Option A) (A), (D) and (E) only.