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Question
Which of the following conducts electricity?
Which of the following conducts electricity?
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Solution
The correct option is B Molten NaCl
Ionic compounds in the solid state do not conduct
electricity because movement of ions in the solid is not possible
due to their rigid structure. But ionic compounds conduct
electricity in the molten state. This is possible in the molten state
since the elecrostatic forces of attraction between the oppositely
charged ions are overcome due to the heat. Thus, the ions move
freely and conduct electricity. Molten sulphur and diamond don't conduct electricity as they are non-metals.Hence, correct option is B
Ionic compounds in the solid state do not conduct electricity because movement of ions in the solid is not possible due to their rigid structure. But ionic compounds conduct electricity in the molten state. This is possible in the molten state since the elecrostatic forces of attraction between the oppositely charged ions are overcome due to the heat. Thus, the ions move freely and conduct electricity. Molten sulphur and diamond don't conduct electricity as they are non-metals.
Hence, correct option is B
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