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प्रश्न
Answer the following in one or two sentences.
A solid is hard, brittle and electrically nonconductor. Its melt conducts electricity. What type of solid is it?
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उत्तर
Ionic solids are hard and brittle. They are nonconductors of electricity in solid-state. However, they are good conductors when melted. Hence, the given solid is an ionic solid.
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