MHT CET Chemistry Question (2026) — Solution

Step-by-step solution

The central metal ion is Platinum in the +4 oxidation state, denoted as Pt ^ 4+ . The ligands are: Bis(ethylenediamine) two ethylenediamine (en) molecules. Since 'en' is a neutral ligand, its charge contribution is 0. dithiocyanato two thiocyanato ( SCN ^ - ) ions. Each SCN ^ - has a charge of -1, so their total charge contribution is -2. The net charge on the complex ion is calculated as: Net charge = Charge of Pt + Charge of 2( en ) + Charge of 2( SCN ^ - ) Net charge = +4 + 0 + 2(-1) = +2 Writing the formula by placing the central metal atom followed by the ligands in alphabetical order inside the coordination sphere, we get: [ Pt(en) _2( SCN )_2]^ 2+ Answer: [ Pt(en) _2( SCN )_2]^ 2+