Question : Which of the following is a conductor of electricity?
Option 1: Rubber
Option 2: Pure water
Option 3: Saltwater
Option 4: Benzene
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Correct Answer: Saltwater
Solution : The correct answer is Saltwater .
Saltwater conducts electricity more effectively than pure or "normal" water. When salt (sodium chloride, NaCl) is dissolved in water, ions are dissolved in the solution, especially sodium (Na+) and, chloride (Cl-) ions. As a result, the solution has a higher conductivity.
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