Transition and InnerTransition Elements - Result Question 135
####35. Which of the following compounds is expected to be coloured?
(1997, 1M)
(a) $Ag _2 SO _4$
(b) $CuF _2$
(c) $MgF _2$
(d) $CuCl$
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Solution:
- $Cu^{2+}\left(3 d^{9}\right)$ undergo $d-d$ transition, exhibit colour.