Question

What do you mean by DD Transition

Answer 1

Answer:

your answer is in the pic.

Answer 2

Answer:

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d-d transition means the transition of electrons within the d-orbitals. This transition is the reason for colour for d-block compounds. In complexes, in octahedral field, d-orbitals split into lower energy t2g{dxy,dxz,dyz} and higher energy eg{dx^2-y^2, dz^2} orbitals.