Question

What do you understand by acid and base? Write two applications of pH in daily life.

Hint:

pH plays a crucial role in chemical reactions, agriculture, and biological processes.

Answer 1

Acids are substances that release hydrogen ions (H+) in an aqueous solution, whereas bases release hydroxide ions (OH-). Acids have a pH below 7, while bases have a pH above 7.
Applications of pH in Daily Life:
1. Soil pH: Farmers adjust soil pH using lime to ensure proper crop growth.
2. Digestion: Stomach acid (HCl) helps in food digestion; an imbalance can cause acidity.