NEET UG CHEMISTRY MCQ: d & f- BLOCK ELEMENTS

Option D (All of these) is correct because copper sulfate ($\mathrm{CuS}{\mathrm{O}_4}$) can form complexes with ammonia ($\mathrm{N}{\mathrm{H}_3}$), hydrogen sulfide (${\mathrm{H}_2}\mathrm{S}$), and phosphine ($\mathrm{P}{\mathrm{H}_3}$).