Question

Pauling suggested an equation to predict the acidic strength of oxy acid $pK_{a}\sim eq9-7n$ at $25^\circ C$
Where $'n'$ is the number of non-hydrogenated oxygen atom per molecule. According to Pauling equation which of the following is incorrect?

• A. $\left(pK\right)_{a}\left(H_{3} \left(PO\right)_{4}\right)\sim eq2$
• B. $\left(pK\right)_{a}\left(\left(HClO\right)_{4}\right)\sim eq-12$
• C. $\left(pK\right)_{a}\left(\right.HOCl\left.\right)\sim eq9$
• D. $\left(pK\right)_{a}\left(H_{2} \left(SO\right)_{3}\right)\sim eq-5$

Answer 1

Answer: (D)