(a) Why does the element carbon form a large number of carbon compounds?(b) Write down the structures and names of two isomers of butane (C₄H₁₀).

(a) Carbon can link with one another by covalent bonding and forms large chains of carbon atoms. This is why carbon forms a large number of carbon compounds.

(b) Isomers of butane are given below:

n- butane

iso-butane