JEE Main Chemistry question

Transition metal ions show colour because

(A)They absorb light
(B)They emit light
(C)They are paramagnetic
(D)They exhibit - transitionCorrect

Answer: (D)

Solution

Coloured transition-metal ions contain partially filled -orbitals. An unpaired -electron absorbs energy from visible light and gets excited to a higher -orbital (- transition); the complementary wavelength

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Question ID VK-147157