Coordination Compounds 2 Question 35
####37. Among the following, the coloured compound is
$(2008,3 M)$
(a) $CuCl$
(b) $K _3\left[Cu(CN) _4\right]$
(c) $CuF _2$
(d) $\left[Cu\left(CH _3 CN\right) _4\right] BF _4$
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Answer:
Correct Answer: 37. (a)
Solution:
- $CuF _2: Cu^{2+}$ has $3 d^{9}$-configuration, allowed $d-d$ transition, hence, coloured.
