Why ionic compounds have high melting and boiling point
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(a) Give reason for the following :
(i) Ionic compounds have high melting and boiling points.
(ii) Ionic compound are soluble in water.
(iii) Ionic compounds conduct elecincity in molten state.
(b) Show the formation of MgO by transfer of electrons.
CBSE Class X Science LA (5 Marks)