`H_(3)PO_(3)` is diprotic (or dibasic). Why ?

Explanation

To understand why \( H_3PO_3 \) (phosphorus acid) is diprotic (or dibasic), we can follow these steps:

### Step 1: Definition of Diprotic
A diprotic acid is one that can donate two protons (H⁺ ions) per molecule when dissolved in water.

### Step 2: Structure of \( H_3PO_3 \)
The molecular structure of phosphorus acid \( H_3PO_3 \) can be represented as follows:

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