Select the monoprotic, diprotic and triprotic acids from the following:
(i) Hydrochloric acid
(ii) Sulphuric acid
(iii) Phosphoric acid
(iv) Acetic acid

Explanation

To solve the question of identifying monoprotic, diprotic, and triprotic acids from the given list, we will follow these steps:

### Step 1: Understand the Definitions
- **Monoprotic Acid**: An acid that can donate one proton (H⁺) per molecule in an aqueous solution.
- **Diprotic Acid**: An acid that can donate two protons (H⁺) per molecule in an aqueous solution.
- **Triprotic Acid**: An acid that can donate three protons (H⁺) per molecule in an aqueous solution.

### Step 2: Analyze Each Acid
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