Which of the following statements are correct for carbon compounds?
(i) Most carbon compounds are good conductors of electricity.
(ii) Most carbon compounds are poor conductors of electricity.
(iii) Force of attraction between molecules of carbon compounds is not very strong.
(iv) Force of attraction between molecules of carbon compounds is very strong.

(ii) and (iii)

The correct answer is option 2. (ii) and (iii).

The correct statements for carbon compounds are:

(ii) Most carbon compounds are poor conductors of electricity. This is true because most carbon compounds, especially organic compounds, are covalent compounds with electrons shared between atoms rather than free-moving electrons that can conduct electricity.

(iii) Force of attraction between molecules of carbon compounds is not very strong. This is generally true for most carbon compounds. Covalent compounds, including those of carbon, typically have weaker intermolecular forces compared to ionic or metallic compounds.

Therefore, the correct answer is (ii) and (iii).