Select the correct alternative from the choices given :
The correct order of increasing acidic strength of the oxoacids of chlorine is :

Options

A. `HClO_(3) lt HClO_(4) lt HClO_(2) lt HClO`
B. `HClO lt HClO_(2) lt HClO_(3) lt HClO_(4)`
C. `HClO_(2) lt HClO lt HClO_(4) lt HClO_(3)`
D. `HClO_(3) lt HClO_(4) lt HClO lt HClO_(2)`

Explanation

To determine the correct order of increasing acidic strength of the oxoacids of chlorine, we need to analyze the oxidation states of chlorine in each oxoacid. The acidic strength of oxoacids is directly related to the oxidation state of the central atom (chlorine in this case). Higher oxidation states correspond to stronger acids.

### Step-by-step Solution:

1. **Identify the Oxoacids of Chlorine**: The common oxoacids of chlorine are:
- HClO (Hypochlorous acid)
- HClO2 (Chlorous acid)
- HClO3 (Chloric acid)
- HClO4 (Perchloric acid)

2. **Determine the Oxidation State of Chlorine in Each Oxoacid**:
- For **HClO**:
- Let the oxidation state of Cl be \( x \).
- The equation is \( 1 + x - 2 = 0 \) (since O is -2).
- Solving gives \( x = +1 \).

- For **HClO2**:
- Let the oxidation state of Cl be \( x \).
- The equation is \( 1 + x + 2(-2) = 0 \).
- Solving gives \( x = +3 \).

- For **HClO3**:
- Let the oxidation state of Cl be \( x \).
- The equation is \( 1 + x + 3(-2) = 0 \).
- Solving gives \( x = +5 \).

- For **HClO4**:
- Let the oxidation state of Cl be \( x \).
- The equation is \( 1 + x + 4(-2) = 0 \).
- Solving gives \( x = +7 \).

3. **Rank the Oxoacids Based on Oxidation State**:
- HClO: +1 (weakest acid)
- HClO2: +3
- HClO3: +5
- HClO4: +7 (strongest acid)

4. **Establish the Order of Increasing Acidic Strength**:
- Based on the oxidation states, the order of increasing acidic strength is:
- HClO < HClO2 < HClO3 < HClO4

5. **Select the Correct Alternative**:
- The correct order of increasing acidic strength of the oxoacids of chlorine is:
- HClO < HClO2 < HClO3 < HClO4

### Final Answer:
The correct order of increasing acidic strength of the oxoacids of chlorine is: **HClO < HClO2 < HClO3 < HClO4**.