The two compounds pentaamminesulphatocobalt (III) bromide and pentaamminesulphatocobalt (III) chlori — Coordination Compounds Chemistry Question

💡 Solution & Explanation

Step 1: Write down the chemical formulas of the two complexes: pentaamminesulphatocobalt (III) bromide is [Co(SO4)(NH3)5]Br, and pentaamminesulphatocobalt (III) chloride is [Co(SO4)(NH3)5]Cl. Step 2: Isomers must have the same overall molecular formula. Step 3: Because the first compound contains bromine and the second contains chlorine, they have different molecular formulas and therefore do not show any isomerism (option d).