Phosphoric acid ionizes in three steps with their ionization constant values K_a_1, K_a_2 and K_a_3, respectively, while K is the overall ionization…

Phosphoric acid ionizes in three steps with their ionization constant values $\displaystyle \mathrm{K}_{\mathrm{a}_1}, \mathrm{~K}_{\mathrm{a}_2}$ and $\displaystyle \mathrm{K}_{\mathrm{a}_3}$, respectively, while K is the overall ionization constant. Which of the following statements are true? A. $\displaystyle \log \mathrm{K}=\log \mathrm{K}_{\mathrm{a}_1}+\log \mathrm{K}_{\mathrm{a}_2}+\log \mathrm{K}_{\mathrm{a}_3}$ B. $\displaystyle \mathrm{H}_3 \mathrm{PO}_4$ is a stronger acid than $\displaystyle \mathrm{H}_2 \mathrm{PO}_4^{-}$ and $\displaystyle \mathrm{HPO}_4^{2-}$. C. $\displaystyle \mathrm{K}_{\mathrm{a}_1}>\mathrm{K}_{\mathrm{a}_2}>\mathrm{K}_{\mathrm{a}_3}$ D. $\displaystyle \mathrm{K}_{\mathrm{a}_1}=\frac{\mathrm{K}_{\mathrm{a}_3}+\mathrm{K}_{\mathrm{a}_2}}{2}$ Choose the correct answer from the options given below: