Molten sodium chloride conducts electricitry due to the presence of:
A
Free electrons
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B
Free ions
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C
free molecules
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D
atoms of sodium and chlorine
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Solution
The correct option is B Free ions In molten state (liquid at high temperature) the sodium cations and chloride anions are free to move. Under electric field migration of these ions towards their oppositely charged electrodes result in the flow of current.