Which of the following statements about KCl are correct?

• A. KCl is a salt.
• B. KCl dissociates in water.
• C. KCl is an electrolyte.
• D. KCl is a nonelectrolyte.

Answer: (C)

Verified step by step guidance

1. Step 1: Understand what KCl (potassium chloride) is chemically. KCl is an ionic compound formed from potassium ions (K\^+) and chloride ions (Cl\^-), which classifies it as a salt.
2. Step 2: Consider the behavior of KCl when dissolved in water. Ionic compounds like KCl dissociate into their constituent ions in aqueous solution, meaning KCl separates into K\^+ and Cl\^- ions.
3. Step 3: Recognize the definition of an electrolyte. An electrolyte is a substance that produces ions in solution and thus can conduct electricity. Since KCl dissociates into ions in water, it acts as an electrolyte.
4. Step 4: Evaluate the statement that KCl is a nonelectrolyte. Since KCl dissociates into ions and conducts electricity in solution, it cannot be classified as a nonelectrolyte, which are substances that do not produce ions in solution.
5. Step 5: Summarize the correct statements: KCl is a salt, it dissociates in water, and it is an electrolyte. The statement that KCl is a nonelectrolyte is incorrect.