`PCl_(3)` on hydrolysis gives

Options

A. `H_(3)PO_(2)`
B. `H_(3)PO_(3)`
C. `HCl`
D. Both (2) and (3)

Answer

To solve the question "PCl₃ on hydrolysis gives", we will follow these steps:

### Step 1: Understand Hydrolysis
Hydrolysis is a chemical reaction involving the addition of water (H₂O) to a compound. In this case, we are looking at the hydrolysis of phosphorus trichloride (PCl₃).

### Step 2: Write the Reaction
The hydrolysis of phosphorus trichloride can be represented as follows:
\[ \text{PCl}_3 + \text{H}_2\text{O} \rightarrow \text{H}_3\text{PO}_3 + \text{HCl} \]

### Step 3: Identify the Products
From the reaction, we can see that phosphorus trichloride reacts with water to produce:
1. Phosphorous acid (H₃PO₃)
2. Hydrochloric acid (HCl)

### Step 4: Balance the Reaction
To ensure that the reaction is balanced, we can check the number of atoms of each element on both sides of the equation. The balanced reaction is:
\[ \text{PCl}_3 + 3\text{H}_2\text{O} \rightarrow \text{H}_3\text{PO}_3 + 3\text{HCl} \]

### Step 5: Conclusion
The products of the hydrolysis of PCl₃ are phosphorous acid (H₃PO₃) and hydrochloric acid (HCl).

### Final Answer
PCl₃ on hydrolysis gives H₃PO₃ and HCl.

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