Multiple choice

The acid which is the secreted by the glands in the stomach wall is

  1. Sulphuric acid

  2. Hydrochloric acid

  3. Nitric acid

  4. Phosphoric acid

Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The stomach secretes hydrochloric acid (HCl) which creates the acidic environment necessary for protein digestion and killing harmful microorganisms in food. This acid is produced by parietal cells in the stomach lining. The other options are strong industrial acids not found in biological systems.