Previous Year Question
The sour taste of lemon is due to the presence of which of the following?
A.
Citric Acid
B.
Acetic Acid
C.
Oxalic Acid
D.
Formic Acid
Correct Answer: A
Detailed Solution
The sour taste of lemon is mainly due to citric acid. Citric acid occurs naturally in lemons, oranges and other citrus fruits. NCERT's list of naturally occurring acids also identifies Lemon — Citric acid.
Among the other options, acetic acid is associated with vinegar, oxalic acid occurs in sources such as tomato, and methanoic/formic acid is associated with ant stings and similar sources.