question_answer 30)

    Which of the following statements are usually correct for carbon compounds? These (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) Carbon mainly forms covalent compounds, which due to the absence of free ions, are generally poor conductors of electricity. Also the forces of attraction in between their molecules are weak.