Question

________ tastes sour.

• A. Curd, lemon juice
• B. Orange juice
• C. Vinegar
• D. All of the above

Answer 1

Answer: (D)

All of the above

Lactic acid is present in curd and lemon juice has citric acid.

Orange juice has citric acid and vinegar has 3-9% acetic acid, while rest all in it is water.

Acids have a property to taste sour. Thus curd,lemon juice, orange juice and vinegar all have some amount of acid and hence they all are sour to taste.

Hence, the correct answer is option (D).