Question

Carbon compounds :
(i) are good conductors of electricity.
(ii) are bad conductors of electricity.
(iii) have strong forces of attraction between their molecules.
(iv) have weak forces of attraction between their molecules.
The correct statements are :

• A. (i) and (ii)
• B. (ii) and (iii)
• C. (ii) and (iv)
• D. (i) and (iii)

Answer 1

The Correct Option is C

Step 1: Understanding the properties of carbon compounds:
Carbon compounds, such as organic compounds, have distinct properties depending on their structure and type. These compounds are primarily covalent and can be gases, liquids, or solids.

Step 2: Analyzing the given statements:
(i) Carbon compounds are good conductors of electricity:
This statement is incorrect. Most carbon compounds, especially organic compounds, do not conduct electricity as they lack free electrons or ions that are needed for conduction.

(ii) Carbon compounds are bad conductors of electricity:
This statement is correct. As mentioned, most carbon compounds, particularly non-metallic organic compounds, are poor conductors of electricity because they do not contain free-moving charged particles.

(iii) Carbon compounds have strong forces of attraction between their molecules:
This statement is incorrect. Most carbon compounds, especially organic compounds like hydrocarbons, have weak intermolecular forces (such as Van der Waals forces) between their molecules.

(iv) Carbon compounds have weak forces of attraction between their molecules:
This statement is correct. The intermolecular forces in most carbon compounds are weak, especially in non-polar organic compounds.

Step 3: Conclusion:
The correct statements are (ii) and (iv). Therefore, the correct answer is (ii) and (iv).