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Question -

Element X forms a chloride with the formula XCl2, which is a solid with a high melting -



Answer -

point. X would most likely be in the same group of the Periodic Table as 

(a) Na            (b) Mg        (c) AI                (d) Si
Answer
(c) AI (d) Si
Also, Mg when combines chloride forms MgCl2.

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