Give reasons (i)Ionic compounds in solid state do not Conduct electricity, whereas in molten state are good conductors of electricity (ii) Chemical reaction does not take place when copper is added to iron sulphate solution.
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(i) In solid state the molecules are really close to each other and does not allow electricity to glow through them but in molten state the molecules freely move allowing them to conduct electricity.
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1. In solid state, they are hard because of the strong force of attraction between the positive and negative ions.
In the molten state, electrostatic forces of attraction are between the oppositely ions overcome due to the heat. Thus the ions move freely and conduct electricity
2.Chemical reaction does not take place when copper is added to iron sulphate solution because iron is less reactive than iron
Explanation:
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