Four species are listed below :

$\left(\mathrm{i}\right) {\mathrm{HCO}}_3^{-} \left(\mathrm{ii}\right) {\mathrm{H}}_3{\mathrm{O}}^{+} \left(\mathrm{iii}\right) {\mathrm{HSO}}_4^{-} \left(\mathrm{iv}\right) {\mathrm{HSO}}_3\mathrm{F}$

Which one of the following is the correct sequence of their acid strength ?

The ${\mathrm{pK}}_{\mathrm{a}}$ values of ${\mathrm{HCO}}_3^{-}, {\mathrm{H}}_3{\mathrm{O}}^{+} \mathrm{and} {\mathrm{HSO}}_4^{-}$ are 10.25, -1.74 and 1.92 respectively are ${\mathrm{HSO}}_3^{ } \mathrm{F}$ is super acid (iv) > (ii) > (iii) > (i),

$\mathrm{Between} {\mathrm{HSO}}_4^{-} \mathrm{and} {\mathrm{HCO}}_3^{-} \mathrm{more} \mathrm{resonating} \mathrm{structures} \mathrm{more} \mathrm{stability} \mathrm{of} \mathrm{base},\mathrm{conjugate} \mathrm{acid} \mathrm{is} \mathrm{strong} \mathrm{acid}$