(i) The pH of a sample of tomato juice is 4.6. How is this juice likely to be in taste? Give reason to justify your answer. (ii) How do we…

(i) The taste of tomato juice will be slightly sour; The pH $\displaystyle 4.6$ indicates that tomato juice is an acid and acids are sour in taste.

(ii) Acids that give more \(\displaystyle \mathbf{H}^{+}\)ions \(\displaystyle / \mathbf{H}_{\mathbf{3}} \mathbf{O}^{+}\)are Strong Acids Bases that give less \(\displaystyle \mathbf{O H}^{-}\)ions are Weak Bases.

(iii) Living animals can survive within a pH range of $\displaystyle 7.0$ to $\displaystyle 7.8$ . So, if the pH of river water becomes low due to acid rain \(\displaystyle (\mathbf{p H}<\mathbf{5} \cdot \mathbf{6})\), then survival of aquatic animals becomes difficult.