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Question
Which of the following will conduct electricity and which not?
MgCl2, CCl4, NaCl, CS2, Na2S
Give reasons for your choice.
Give Reasons
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Solution
The MgCl2, NaCl, and Na2S are ionic compounds. They conduct electricity because they produce free ions when molten or dissolved in water.
The CCl4 and CS2 are covalent compounds. They do not produce ions in solution and therefore do not conduct electricity.
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Chapter 3: Metals and Non-metals - Exercise 2 [Page 205]
