Some substances are good conductor of electricity in both the solid and liquid states. These substances are generally______________?

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2. Which metal is pure conductor of electricity?

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3. Which one of the following non-metals is not a poor conductor of electricity?

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5. Which one of the following substances conducts electricity by the movement of ions ?

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6. The best conductor of heat among liquid is___________?

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8. Change of state form liquid to solid is _________?

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9. As a substance moves from a solid to a liquid all of the following changes occur except ?

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