Which of the following set of substances contain acids

• GC Acids Bases Salts

Which of the following set of substances contain acids?

1. Grapes, lime water
2. Vinegar, soap
3. Curd, milk of magnesia
4. Curd, vinegar

Answer

Curd contains lactic acid and vinegar contains acetic acid.

Lime water, soap and milk of magnesia are basic substances and grapes contains tartaric acid.

The correct option is D.