Among 2-, 3-, and 2- (atomic numbers of Ti = 22, Co = 27, Cu = 29, Ni = 28), the colourless species — Coordination Compounds Chemistry Question

💡 Solution & Explanation

Colour is shown by those transition element complexes which have unpaired d–electrons and are paramagnetic in nature. The electronic transitions of these unpaired electrons impart colour to the solution. 2 0 6 10 2 2 TiF due d configuration diamagnetic&colorless Cu Cl due to d configuration