An element Z forms the following compound when it reacts with hydrogen,chlorine,oxygen and phosphorus.
ZH_3, ZCl_3, Z_2O_3 And ZP
(a) What is the valency of elementZ?
(b)Element Zis metal or nonmetal?

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Solution

(a) Valency is the combining capacity of an element.In the given compounds, 1 atom of Z combines with 3 atoms of hydrogen ( monovalent) in ZH₃, 3 atoms of chlorine(monovalent) in ZCl₃, 3/2 atoms of oxygen (divalent) in Z₂O₃and 1 atom of phosphorus (trivalent) in ZP.Therefore, the valency of Z is 3.
(b) Z is a metal

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An element Z forms the following compound when it reacts with hydrogen,chlorine,oxygen and phosphorus.ZH_3, ZCl_3, Z_2O_3 And ZP(a) What is the valency of elementZ?(b)Element Zis metal or nonmetal?

An element Z forms the following compound when it reacts with hydrogen,chlorine,oxygen and phosphorus.
ZH_3, ZCl_3, Z_2O_3 And ZP
(a) What is the valency of elementZ?
(b)Element Zis metal or nonmetal?