Question

7. (i) Show on a diagram the electrons between the atoms in the formation of Mgo. Write symbols
of cation and anion present in Mgo.
(ii) Why are aqueous solution of ionic compounds able to conduct electricity?
3​

Answer 1

Answer:

(1) Cation present in MgO→Mg 2+

Anion present in MgO→O 2−

(2) Ionic compounds conduct electricity when molten (liquid) or in aqueous solution (dissolved in water), because their ions are free to move from place to place. Ionic compounds cannot conduct electricity when solid, as their ions are held in fixed positions and cannot move.