Element M forms a chloride with the formula MCl2 which is a solid with high melting point. What type of bond is in MCl2. Write the formula of the compound when M combines with sulphur, oxygen and nitrogen.
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Solution
Type of bond is ionic bond
The valency of chlorine is 1. Therefore, if the element M is forming a chloride of the formula MCl2, it means that the valency of M is 2. Also, since the compound MCl2has high melting point, it means that it is an ionic compound.