If the aluminium salt of an anion is Al2X3, what is the valency of X and what will be the formula of magnesium salt of X?
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Solution
The valency of a metal in the formula of ionic salts is written at the subscript of non-metal and vice-versa.So the, valency of X in Al2 X3 is 2.
The valency of Magnesium is 2.So the formula of magnesium salt will be MgX.