'Valency is the number of hydrogen atoms which can combine with [or displace] one atom of the element [or radical] forming a compound.'With reference to the above definition of valency, State the valency of chlorine in hydrogen chloride, giving reasons .

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Solution

Dear student,

The formula of hydrogen chloride is HCl. Therefore, the valency of chlorine in hydrogen chloride is 1.

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Similar questions

Q. Valency can be defined as the same number of hydrogen atoms or double the number of oxygen atoms that element combines with.

Statement-1: An atom of valency 2 can combine with 2 other atoms of valency 1.
Statement-2: The valency of an element is the measure of its combining power with other atoms, when it forms chemical compounds or molecules.

Statement 1: An atom of valency 2 can combine with 2 other atoms of valency 1.
Statement 2: To write the chemical formula, one must know the valency of the element.

Q. What specific name is given to 'the number of hydrogen atoms that can combine with or be displaced by one atom of an element'? Is this a modern definition?

Q. In a short period, as atomic number increases, the valency of elements with respect to hydrogen:

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'Valency is the number of hydrogen atoms which can combine with [or displace] one atom of the element [or radical] forming a compound.'With reference to the above definition of valency, State the valency of chlorine in hydrogen chloride, giving reasons .

Dear student, The formula of hydrogen chloride is HCl. Therefore, the valency of chlorine in hydrogen chloride is 1. Regards

Dear student,

The formula of hydrogen chloride is HCl. Therefore, the valency of chlorine in hydrogen chloride is 1.

Regards