Name one ionic compound containing chlorine and one covalent compound containing chlorine.

27 Explain why, ionic compounds conduct electricity in solution whereas covalent compounds do not conduct electricity. 27 Which of the following will conduct electricity and which not?

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

28 How will you find out which of the water soluble compound A or B is ionic? 29 Explain why, a solution of cane sugar does not conduct electricity but a solution of common salt is a good conductor of electricity.