(i) are good conductors of electricity

(ii) are poor conductors of electricity

(iii) have strong forces of attraction between their molecules

(iv) do not have strong forces of attraction between their molecules

(a) (i) and (iii)

(b) (ii) and (iii)

(c) (i) and (iv)

(d) (ii) and (iv)

Answer: (d) (ii) and (iv)

Reason: The Carbon compounds are basically bad conductors of electricity as well as they do not have any strong forces of attraction between their molecules.