Solution:
Citric acid is found in citrus fruits like lemon, acetic acid in vinegar, and ascorbic acid in unripe apples.Citrus fruits and vinegar are acid solutions. The highest natural citric acid is found in lemons and limes. Baking soda and shampoo are bases. Acids are those substances that give ions in the aqueous solution. Bases are those substances which give ions in the aqueous solution. Citrus fruits are sour and have a pH of less than 7. Acids are sour, and bases are bitter.
