a.

paraffin oil

b.

animals

c.

groundnuts`

d.

palm kernel

a.

electrons are consumed

b.

ions are dissolved

c.

oxidation is involved

d.

the electrode dissolves

a.

Nitrogen(II)oxide and Carbon(IV)oxide

b.

Carbon(IV)oxide and Nitrogen

c.

Carbon(II)oxide and Sulphur(IV)oxide

d.

Carbon(II)oxide and oxygen

a.

Ether

b.

Methane

c.

Butane

d.

Hydrogen