For a solution to conduct electricity, it must contain free-moving ions. Solutions of ionic compounds (like Copper sulphate, Sodium chloride, Sodium hydroxide) dissociate into ions when dissolved in water, allowing them to conduct electricity. Sugar (sucrose) is a covalent compound; when it dissolves in water, it remains as neutral molecules and does not produce ions.
Which one of the following solutions is not capable of conducting electricity?
Asked in UPSC NDA 2 2022 · Topic: Physical and Chemical Changes, Solution (Concept of Solutions: Solute, Solvent, and Components)
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