Question

Molecular formula of the chloride of an clement X is XCL This compound is a solid having high citing point. Which of the following elements be present in the same group as X (1) Na (1) Mg() AI (iv) St and with statement of this answer​

Answer 1

As XCl is the compound this means that valency of X is +1.

thus it can be hydrogen or any other alkali metals.

but HCl is not solid.

thus the X is the element of alkali metal group.

X can be lithium,sodium.potassium,rubidium or cesium.

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