Which among the following compounds is the main constituent of natural gas?

Which one of the following is a covalent compound?

Which one of the following is NOT an example of organic compound?

Which one among the following compounds has a sweet and fruity smell ?

Which one of the following naturally occurring acids is found in abundance in tomato?

Bisphenol A (BPA), a cause of concern is a structural/ key component in the manufacture of which of the following kinds of plastics?