Give one example of an edible acid and discuss its uses.
Acids are those substances whose pH value is less than 7 and turn the litmus paper from blue to red.
An example of an edible acid that we use in our day to day life is Citric acid() which is commonly found in Oranges and Lemons.
Uses of citric acid:
Therefore, Citric acid() is an example of an edible acid.