Question

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.
(a) (ii) and (iv)
(b) (ii) and (iii)
(c) (i) and (iv)
(d) (i) and (iii)

Answer 1

Answer:

(b) (ii) and (iii)

Explanation:

points (ii) & (ii) are true..

Answer 2

(b) (ii) and (iii) is correct about carbon compounds.

• Carbon has valency of four, so it needs four more electrons to complete it's octet.
• Carbon compounds form covalent bonds by sharing of electrons. Since no ionisation takes place, there exists no force of attraction between the molecules.
• Thus, force of attraction is not very strong.
• For the same reason, which is absence of ions, these compounds can not conduct electricity as well.