Question

Consider the coordination compound, $K_2\left[Cu\right(CN{)}_4]$. A coordinate covalent bond exists between:

• A. $K^{+}$ and $C{N}^{-}$
• B. $C{u}^{2+}$ and $C{N}^{-}$
• C. $K^{+}$ and $Cu(CN{)}_4^{2-}$
• D. $C$ and $N$ in $C{N}^{-}$

Answer 1

The correct option is B $C{u}^{2+}$ and $C{N}^{-}$

The coordinate covalent bond exists between the central metal and ligand. In $K_2\left[Cu\right(CN{)}_4]$ ex the coordinate bond exists between $C{u}^{2+}$ and $C{N}^{-}$.