Element X, which is solid and has a high melting point, forms a chloride XCl3.
This element X would be in a group of the modern periodic table along with
A
Na
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B
Mg
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C
Al
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D
Si
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Solution
The correct option is C Al From the given compound XCl3 we can see that the valency of the element X is 3. Among the given options Al has valency 3, so X belongs to the group to which Al belongs to.