Chemistry - Coordination Chemistry Question with Solution | TestHub
Symmetrical Di- -hydroxytetrakis(ethylenediamine)dicobalt(III) chloride (P) complex reacts with aq. HCl to give a product which is resolvable with optical isomers. When it is kept in acidic medium the compound changes color and give isomer (R) which is not optically resolvable.
Select correct statement(s) ?
Options:(select one or more)
Answer:
Solution:
Complex Q, containing ethylenediamine (en) ligands, is chiral and optically active due to the bidentate nature of en creating asymmetric centers.
Replacing one en by two NH₃ ligands (monodentate) can retain chirality, so complex remains optically resolvable (Statement C true).
However, replacing the second en by two HO⁻ ligands removes the chirality, making complex R optically inactive (Statement B true).
Thus, B and C are correct; the others are false.
