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The colour of light absorbed by an aqueous solution of CuSO 4 is (A) orange- red (B) blue-green (C) yellow (D) violet

The colour of light absorbed by an aqueous solution of CuSO 4 is
(A) orange- red
(B) blue-green
(C) yellow
(D) violet

Grade:11

2 Answers

Saurabh Koranglekar
askIITians Faculty 10335 Points
3 years ago
Dear student

The answer is option a

Regards
Vikas TU
14149 Points
3 years ago
Cu2+ is blue in aqueous solution. CuSO4 has a λmax of about 635 nm (red). It reflects the color blue, so it absorbs mostly red light, the complementary color.

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