Question

The characteristic odour of garlic is due to

• A. A fluorine compound
• B. A sulphur compound
• C. A chloro compound
• D. Acetic acid

Answer 1

The correct option is B A sulphur compound

Garlic (Allium sativum) is a species in the onion genus, Allium. Garlic is native to Central Asia and northeastern Iran, and has long been a common seasoning worldwide, with a history of several thousand years of human consumption and use. It was known to ancient Egyptians, and has been used both as a food flavoring and as a traditional medicine. China produces some 80% of the world supply of garlic. Garlic is known to cause bad breath (halitosis) and body odor, described as a pungent "garlicky" smell to sweat. This is caused by allyl methyl sulfide (AMS). AMS is a volatile liquid which is absorbed into the blood during the metabolism of garlic-derived sulfur compounds; from the blood it travels to the lungs and skin, where it is exuded through skin pores.

So the correct option is 'A sulphur compound'.