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Question

Which of the following ions is colored due to d-d transitions?

Options

Choose one · Correct answer highlighted

Explanation

Ni^{2+ (Z = 28): 3d⁸ . Partially filled d orbitals allow d-d transitions, causing a green color in aqueous solution. This follows from latest NCERT 2026-27 principle explaining the concept clearly for NEET students in simple steps as per rationalized syllabus.

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