Which compound will conduct electricity when it is dissolved in water?

CuSO4 is an ionic compound, so when it dissolves in water it separates into mobile Cu²⁺ and SO₄²⁻ ions. These charged particles carry electric current through the solution. CH4, C6H6, and C6H12O6 are molecular compounds that do not form ions in water, so the correct choice is B, CuSO4.

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