Question

Which combination is best explained by co-ordinate covalent bond?

• A. $Mg+Y_2{O}_2$
• B. Cl + Cl
• C. $H^{+}+H_{2}O$
• D. $H_2+I_2$

Answer 1

The correct option is C $H^{+}+H_{2}O$

Options B,C and D will form covalent compounds. Oxygen has a lone pair of electrons which it will share with $H^{+}$ forming co-ordinate bond.