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Consider the following complex: \( \left[\mathrm{Co}\left(\mathrm{CO}_{3}\right)\left(\mathrm{NH}_{3}\right)_{5}\right] \mathrm{ClO}_{4} \)
\( P \) Mark the correct option :

W
(a)
\( \begin{array}{cccc}\begin{array}{c}\text { Coordination } \\ \text { no. }\end{array} & \text { Oxidation } & \text { No. of } & \text { Unpaired } \\ \text { d-electrons } & \text { no. } & \text { d-electrons }\end{array} \)
(b)
6
3
6
0
(c)
7
\( \begin{array}{lll}2 & 7 & 1 \\ 1 & 6 & 4 \\ 2 & 7 & 3\end{array} \)
(d)
6
b
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