Question

Which of the following is a strong electrolyte?

• A. \( \text{NaCl} \)
• B. \( \text{C}_6\text{H}_6 \)
• C. \( \text{CH}_3\text{OH} \)
• D. \( \text{C}_2\text{H}_5\text{OH} \)

Hint:

Strong electrolytes dissociate completely into ions in solution, which is why they are good conductors of electricity.

Answer 1

The Correct Option is A

A strong electrolyte is a substance that dissociates completely into ions in solution, allowing it to conduct electricity well. - \( \text{NaCl} \) (sodium chloride) dissociates completely into \( \text{Na}^+ \) and \( \text{Cl}^- \) ions, making it a strong electrolyte. - \( \text{C}_6\text{H}_6 \) (benzene) is a non-polar solvent and does not dissociate into ions, so it is a non-electrolyte. - \( \text{CH}_3\text{OH} \) (methanol) and \( \text{C}_2\text{H}_5\text{OH} \) (ethanol) are weak electrolytes because they do not fully dissociate in water. Thus, \( \text{NaCl} \) is a strong electrolyte.