Which one of the following statements is NOT correct?

Options

A. Pure water does not allow a current to flow through it
B. The electrolyte only conducts when in the molten state
C. Electrodes that react with the electrolytes are said to be ''active''
D. Ions must be present in the electrolyte in order that it conducts electricity

Explanation

To determine which statement is NOT correct, we will analyze the provided statements one by one.

### Step-by-Step Solution:

1. **Analyze the first statement**: "Pure water does not allow a current to flow through it."
- Pure water is known to be a poor conductor of electricity because it lacks ions. Therefore, this statement is correct. It accurately describes the conductivity of pure water.

2. **Analyze the second statement**: "Electrolytes only conduct when in molten state."
- This statement is incorrect. Electrolytes can conduct electricity not only in their molten state but also when they are dissolved in water (aqueous solution). In an aqueous solution, electrolytes dissociate into ions, which are responsible for conducting electricity.

3. **Conclusion**: Since the second statement is incorrect, it is the answer to the question.

### Final Answer:
The statement that is NOT correct is: "Electrolytes only conduct when in molten state."

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