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).
Keep practising Coordination Compounds
Browse all Coordination Compounds questions for AP Intermediate 2nd Year, or explore more Chemistry topics.
Related questions
Which complex would exhibit **optical isomerism**?How many geometric isomers does the octahedral complex $[Co(en)_2Cl_2]^+$ exhibit?The oxidation state of Cr in $[Cr(CO)_6]$ is (Z(Cr) = 24):How many ions are produced per formula unit when $[Cr(NH_3)_6]Cl_3$ is dissolved in water?In the complex $K_3[Cr(C_2O_4)_3]$, the coordination number and oxidation state of Cr respThe **Effective Atomic Number (EAN)** of Co in $[Co(NH_3)_6]^{3+}$ (Z(Co) = 27) is:Cisplatin, $[Pt(NH_3)_2Cl_2]$, is a **square planar** complex used as an anticancer drug. The IUPAC name for the ligand **H₂O** in a coordination compound is: