Which of the following salts has the minimum | vedclass

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(B) $Na_2SO_4$ is a salt of a strong acid $(H_2SO_4)$ and a strong base $(NaOH)$,so its solution is neutral $(pH \approx 7)$.$NH_4Cl$ is a salt of a s

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$NH_4Cl$

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(B) $Na_2SO_4$ is a salt of a strong acid $(H_2SO_4)$ and a strong base $(NaOH)$,so its solution is neutral $(pH \approx 7)$.$NH_4Cl$ is a salt of a strong acid $(HCl)$ and a weak base $(NH_4OH)$,so its solution is acidic $(pH $KNO_3$ is a salt of a strong acid $(HNO_3)$ and a strong base $(KOH)$,so its solution is neutral $(pH \approx 7)$.$Na_3PO_4$ is a salt of a weak acid $(H_3PO_4)$ and a strong base $(NaOH)$,so its solution is basic $(pH > 7)$.Therefore,$NH_4Cl$ has the minimum $pH$.

Which of the following salts has the minimum $pH$ in an aqueous solution?

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