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(a) Explain why, ionic compounds conduct electricity in solution whereas covalent compounds do not conduct electricity .

(b) Which of the following will conduct electricity and which not ?

MgCl2 , CCl4 , NaCl, CS2 , Na2S Give reasons for your choice.

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(a) Ionic compounds conduct electricity in solution because they are made up of electrically charged ions but covalent compounds are made u p of electrically neutral molecules so they do not conduct electricity.

(b) Conduct electricity: MgCl 2 , NaCl, Na 2 S (Ionic compounds)

Do not con duct electricity: CCl 4 , CS 2 ( Covalent compounds) .

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