Question

Which of the following compounds contain a coordinate covalent bond?

• A. $Ba{Cl}_2$
• B. $CaCl$
• C. $K_{2}O$
• D. $N_2{H}_3^{+}$

Answer 1

The correct option is D $N_2{H}_3^{+}$

$N_2{H}_3^{+}$ contain a coordinate covalent bond.
$H-N={\underset{\underset{H}{\downarrow }}{N}}^{+}-H$
The N atom is the donor atom and H atom is the acceptor atom.