Q. Element X forms a chloride with the formula , which is a solid with a high melting point. X would most likely be in the same group of the Periodic Table as -

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Solution:

Elements of group Na form XCl halide.
Elements of group form halide.
Elements of group form halide.
Elements of group form halide.
As an element, forms a chloride with the formula , which is solid with a high melting point. would most likely be in the same group of .