Question

What is the coordination number of metal in $[Co(en{)}_2$ $C{l}_2]$ ?

• A. 3
• B. 4
• C. 5
• D. 6

Answer 1

Answer: (D)

In ${\left[Co(en{)}_{2}C{l}_2\right]}^{+}$;
No. of monodentate ligand $=2$
No. of bidentate ligand $=2$
$\therefore$ Co-ordination no. of the metal $=2+2\times 2=6$