Curd and vinegar taste sour because they contain ________.
Show answer & explanation
Correct answer: B
Explanation
The correct answer is option 2 i.e. acids.
- Vinegar tastes sour because it is a dilute solution of acetic acid in water.
- Lemon juice tastes sour because it contains citric acid.
-
Acids change the color of certain vegetable dyes, such as litmus, from blue to red.
-
Acids lose their acidity when they are combined with alkalies.