Identify the wrong statement .

Options

A. Higher the hydrogen ion concentration lower is the pH value.
B. Universal indicator is used to judge how strong a given acid or base is .
C. As the pH value increases from 7 to 14 , it represents increase in `H^(+)` ion concentration in the solution .
D. Values less than 7 on the pH scale represent an acidic solution .

Explanation

To identify the wrong statement regarding acids, bases, and pH values, we will analyze each statement one by one based on the information provided in the video transcript.

### Step-by-Step Solution:

1. **Statement 1: Higher the hydrogen ion concentration, lower is the pH value.**
- Explanation: This statement is correct. In an acidic solution, as the concentration of hydrogen ions (H⁺) increases, the pH value decreases. Therefore, this statement is not the wrong one.

2. **Statement 2: Universal indicator is used to judge how strong a given acid or base is.**
- Explanation: This statement is also correct. A universal indicator changes color based on the pH level of the solution, allowing us to determine the strength of an acid or base. Thus, this statement is not the wrong one.

3. **Statement 3: As the pH value increases from 7 to 14, it represents an increase in H⁺ ion concentration in the solution.**
- Explanation: This statement is incorrect. When the pH value increases from 7 to 14, it indicates a decrease in H⁺ ion concentration and an increase in hydroxide ion (OH⁻) concentration. Therefore, this statement is the wrong one.

4. **Statement 4: A pH value less than 7 on the pH scale represents an acidic solution.**
- Explanation: This statement is correct. A pH value below 7 indicates that the solution is acidic. Hence, this statement is not the wrong one.

### Conclusion:
The wrong statement is **Statement 3**: "As the pH value increases from 7 to 14, it represents an increase in H⁺ ion concentration in the solution."

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