Which liquid is a good conductor of electricity?
Answer & explanation
Correct answer: option 2
The correct answer is Option (2) → Lemon Juice
A liquid conducts electricity when it contains free ions that can move and carry the charge. Lemon juice contains citric acid, which breaks up partly into ions in water, so lemon juice conducts electricity.
Why the other options are incorrect
Option (1) Distilled Water — Incorrect. Pure water has almost no ions, because the salts that make tap water conduct have been removed.
Option (3) Sugar Solution — Incorrect. Sugar dissolves as whole molecules, not ions, so the solution does not conduct.
Option (4) Kerosene — Incorrect. Kerosene is a mixture of hydrocarbons with no ions, and it is an insulator.