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The **coordination number** of the central metal in $[Co(NH_3)_4Cl_2]^+$ is:
A2
B4
C6
D8
Answer & Solution
Correct answer: C. 6
Four NH₃ (each monodentate) + two Cl⁻ (each monodentate) = 6 donor atoms attached to Co. Coordination number = 6 (octahedral geometry).
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