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Which of the following compounds show colour due to d-d transition? (A) CuSO4.5H2O (B) K2Cr2O7 (C) K — JEE Mains Chemistry Past Papers Chemistry Question

Question

Which of the following compounds show colour due to d-d transition? (A) CuSO4.5H2O (B) K2Cr2O7 (C) K2CrO4 (D) KMnO4

Answer: A

💡 Solution & Explanation

CuSO4.5H2O Cu2+ : 3d9 4s0 unpaired electron present so it show colour due to d-d transition.

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