State the type of bonding in the following molecules:

(i) Water

(ii) Calcium Oxide

Draw an electron dot diagram to show the formation of each of the following compounds —

(i) Methane

(ii) Magnesium chloride

[H = 1, C = 6, Mg = 12, Cl = 17]

Give a reason for — Ionic compounds have a high melting point.

Fill in the blank with the correct choice given in the bracket —

Ionic or electrovalent compounds do not conduct electricity in their …………… state. [fused/solid]