The characteristic garlicky odour of garlic is due to ____________.

Correct option is D

The correct answer is (d) sulphur.
 The characteristic garlicky odour of garlic is due to sulphur compounds.
 When garlic is chopped or crushed, it releases sulfur-containing compounds such as allicin, which are responsible for its distinctive smell.
 These sulfur compounds not only give garlic its aroma but also contribute to its health benefits, including antibacterial and antioxidant properties.
Information Booster
Iodine:
 Iodine is a chemical element essential for thyroid function but does not contribute to the odour of garlic.
Copper:
 Copper is a metal that is vital for human health, involved in various bodily functions, but it does not contribute to the odour of garlic.
Chlorine:
 Chlorine is a chemical element often used for disinfection and in the production of various compounds, but it does not contribute to the odour of garlic.