Question

The complex ion $[Co(N{H}_3{)}_6{]}^{3+}$ is formed by $s{p}^3{d}^2$ hybridisation. Hence, the ion should possess

• A. octahedral geometry
• B. tetrahedral geometry
• C. square planar geometry
• D. tetragonal geometry

Answer 1

Answer: (A)

Since the hybridisation of central metal tin $[Co(N{H}_3{)}_6{]}^{3+}$ complex ion is $s{p}^3{d}^2$ and coordination number of $C{o}^{3+}$ is 6. So, its geometry is octahedral.