CHECK POINT 03

Name the compound which contains all the three types of bonds.

What is self-ionisation of water?

On the basis of electron transfer or sharing, distinguish coordinate bonds from electrovalent and covalent bonds.

Using the examples of ammonium ion $\left(\mathrm{N}{\mathrm{H}}_4^{+}\right)$ and hydronium ion $\left({\mathrm{H}}_3{\mathrm{O}}^{+}\right)$, discuss the significance of lone pair in the formation of coordinate bond.

Draw the electron dot structure of hydroxyl ion.