In a solution or molten state, a ........... electrolyte consists almost entirely of ions.

Options

A. non
B. strong
C. weak
D. None of these

Explanation

**Step-by-Step Solution:**

1. **Understanding Electrolytes:**
- An electrolyte is a substance that can dissociate into ions when dissolved in water or in a molten state.

2. **Types of Electrolytes:**
- There are two main types of electrolytes: strong electrolytes and weak electrolytes.
- **Strong Electrolytes:** These substances dissociate almost completely into ions (approximately 100%) when dissolved in a solution or in a molten state. Examples include strong acids like hydrochloric acid (HCl) and strong bases like sodium hydroxide (NaOH).
- **Weak Electrolytes:** These substances only partially dissociate into ions when dissolved. Examples include weak acids like acetic acid (CH₃COOH) and weak bases like ammonia (NH₃).

3. **Identifying the Correct Answer:**
- The question specifically asks for an electrolyte that consists almost entirely of ions in a solution or molten state.
- Since strong electrolytes dissociate almost completely into ions, they are the correct answer to this question.
- Weak electrolytes do not dissociate completely, and non-electrolytes do not dissociate into ions at all.

4. **Conclusion:**
- Therefore, the answer to the question is that a **strong electrolyte** consists almost entirely of ions in a solution or molten state.

**Final Answer:**
A strong electrolyte consists almost entirely of ions in a solution or molten state.

---