The pH of a solution is zero. The solution is

Options

A. Neutral
B. Normal acid
C. Decinormal acid
D. Strongly alkaline

Answer

To determine the nature of a solution with a pH of zero, we can follow these steps:

### Step-by-Step Solution:

1. **Understanding pH**:
The pH of a solution is defined as the negative logarithm (base 10) of the hydrogen ion concentration \([H^+]\):
\[ \text{pH} = -\log[H^+] \]

2. **Given pH Value**:
In this case, the pH is given as 0:
\[ \text{pH} = 0 \]

3. **Calculating Hydrogen Ion Concentration**:
We can rearrange the pH formula to find the concentration of hydrogen ions:
\[ 0 = -\log[H^+] \]
This implies:
\[ \log[H^+] = 0 \]

4. **Exponentiating to Find Concentration**:
To find \([H^+]\), we can exponentiate:
\[ [H^+] = 10^{0} = 1 \text{ M} \]

5. **Interpreting the Concentration**:
A hydrogen ion concentration of 1 M indicates a high concentration of hydrogen ions in the solution.

6. **Determining the Nature of the Solution**:
Since the concentration of hydrogen ions is significantly high (1 M), this indicates that the solution is acidic. In general, solutions with a pH less than 7 are considered acidic.

7. **Conclusion**:
Therefore, we conclude that a solution with a pH of 0 is a strong acid.

### Final Answer:
The solution is an acid.