Which of the following substances is a good c | vedclass

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(D) Molten $KCl$ $(potassium \ chloride)$ is a good conductor of electricity because it contains free mobile ions ($K^+$ and $Cl^-$) that allow the fl

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Molten potassium chloride

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(D) Molten $KCl$ $(potassium \ chloride)$ is a good conductor of electricity because it contains free mobile ions ($K^+$ and $Cl^-$) that allow the flow of electric current. In contrast,diamond is a covalent network solid with no free electrons,and crystalline $NaCl$ and $BaSO_4$ have ions fixed in a lattice structure,preventing conduction.

Which of the following substances is a good conductor of electricity?

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