Give an example in each of the following :

(a) Co-ordinate bond compound,

(b) Solid covalent compound,

(c) Gaseous polar covalent compound,

(d) Gaseous non polar covalent compound,

(e) Liquid non polar covalent compound,

(f) Compound with electrovalent and covalent bond,

(g) Compound with all three types of bonds.

Electrons are getting added to an element Y :

(i) is Y getting oxidized or reduced ?

(ii) which electrode will Y migrate to during the process of electrolysis ?

State the type of bonding in the following molecules.

(a) water,

(b) calcium oxide,

(c) hydroxyl ion,

(d) methane,

(e) ammonium ion,

(f) ammonium chloride

Give reasons — Hydrogen chloride can be termed as a polar covalent compound.