On dissolving 1 mole of each of the followin | vedclass

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(D) The normality $(N)$ of a solution is given by the formula: $N = M 	imes n$-factor,where $M$ is molarity and $n$-factor is the basicity of the aci

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Phosphoric acid $(H_3PO_4)$

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(D) The normality $(N)$ of a solution is given by the formula: $N = M 	imes n$-factor,where $M$ is molarity and $n$-factor is the basicity of the acid.Since $1 \ mole$ of each acid is dissolved in $1 \ L$ of water,the molarity $(M)$ for all is $1 \ M$.For $HCl$,$n$-factor = $1$,so $N = 1 	imes 1 = 1 \ N$.For $HClO_4$,$n$-factor = $1$,so $N = 1 	imes 1 = 1 \ N$.For $HNO_3$,$n$-factor = $1$,so $N = 1 	imes 1 = 1 \ N$.For $H_3PO_4$,it is a triprotic acid ($n$-factor = $3$),so $N = 1 	imes 3 = 3 \ N$.Therefore,$H_3PO_4$ does not give a solution of strength $1 \ N$.

On dissolving $1 \ mole$ of each of the following acids in $1 \ L$ of water,the acid which does not give a solution of strength $1 \ N$ is:

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