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An element X forms a chloride with the formula XCl2, which is a solid with a high melting point. X would most likely be in the same group of the Periodic table as 

(i)   Na

(ii)   Mg 

(iii)   Al 

(iv)   Si 

1 Answer

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Best answer

Correct option  (ii) Mg

Explanation:

Formula of chloride al X is XCl2. Its valency is 2. It shows element belongs to second group. As per option X = Mg

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