What will be the valency of calcium with respect to chlorine?

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Solution

The correct option is C 2
Since valency of chlorine is one, the number of chlorine atom with which one atom of an element can combine is called its valency. Calcium has 2 electrons in its outermost shell hence it needs 2 atoms of chlorine to become stable. Thus valency of calcium with respect to chlorine is 2.

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