Element ‘X’ forms a chloride with the formula XCl2, which is a solid with high melting point. X would most likely be in the same group of the periodic table as:
(a) Si
(b) Mg
(c) Al
(d) Na
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Mg because "X" shows Valency of +2 which is mostly shown by the group 2 of periodic table.
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Answer:
Magnesium
Explanation:
valency of magnesium is +2
valency of chloride is -1
in criss cross method the Ans will be MgCl2
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