Q. The total number of diprotic acids among the following is $\begin{array}{lllll} H _{3} PO _{4} & H _{2} SO _{4} & H _{3} PO _{3} & H _{2} CO _{3} & H _{2} S _{2} O _{7}\end{array}$ $\begin{array}{llll} H _{3} BO _{3} & H _{3} PO _{2} & H _{2} CrO _{4} & H _{2} SO _{3}\end{array}$
The p-Block Elements - Part2
Solution:
Six out of the given acids are diprotic.