Magnesium chloride is an ionic compound formed by magnesium and chloride ions. The overall charge on its molecule will be _____.

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Solution

The correct option is A 0
Molecules of ionic compounds are electrically neutral because they are made up of equal number of oppositely charged ions.

Magnesium chloride $(M g C l_{2})$ has one magnesium $(M g^{2 +})$ ion and two chloride $(C l^{-})$ ions. Hence, the overall charge gets balanced out.

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