NCERT Exercise 5.20 - Coordination Compounds

Question: A solution of [Ni(H2O)6] 2+ is green but a solution of [Ni(CN)4] 2– is colourless. Explain.

Answer: Work from the relevant NCERT mechanism, definition, or quantitative relation for this exercise.

Full step-by-step NCERT solution with diagrams on Something by Zero.