What is "ascorbic acid"?

[nessie]

English Language Proficiency Tests, Advanced Level

ESL/EFL Test #315 "Health and Nutrition Questions Test (1)", question 5

......... is found in orange juice and is another word for Vitamin C.

(a) Carbohydrates
(b) Ascorbic acid
(c) Bacteria

English Language Proficiency Tests, Advanced Level

ESL/EFL Test #315 "Health and Nutrition Questions Test (1)", answer 5

Ascorbic acid is found in orange juice and is another word for Vitamin C.

Correct answer: (b) Ascorbic acid

Your answer was: ?
_________________________

What is "ascorbic acid"?

Thanks

[Mister Micawber]

.
another word for Vitamin C.
.
_________________
Canadian-American native speaker
who teaches English for a living at Mister Micawber's
ESL cafe: Interview with Mister Micawber