Q. Consider the following statements:

1. Both carbon and silicon are capable of making long chain compounds.
2. Both carbon and silicon are used in semiconductors, solar cells, lubricants, as well as sealants.

Which of the above statements is/are correct?
Answer: Both 1 and 2
Notes: Carbon readily forms long chain compounds due to strong C–C bonds, whereas silicon forms long chain silicones with –Si–O–Si– units, not Si–Si chains. Both elements are used in semiconductors, solar cells, lubricants, as well as sealants, utilizing derivatives like graphite, silicones, and organic molecules. Thus, both statements are correct.