What is the valency of $(a)$ aluminium in aluminium sulphate,and $(b)$ sodium in sodium sulphate?
(N/A) The chemical formula for aluminium sulphate is $Al_{2}(SO_{4})_{3}$. In this compound,the valency of aluminium $(Al)$ is $3$.
The chemical formula for sodium sulphate is $Na_{2}SO_{4}$. In this compound,the valency of sodium $(Na)$ is $1$.
The chemical formula for sodium sulphate is $Na_{2}SO_{4}$. In this compound,the valency of sodium $(Na)$ is $1$.
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