Q. The total number of diprotic acids among the following is - $H _{3} PO _{4}, H _{2} SO _{4}, H _{3} PO _{3}, H _{2} CO _{3}, H _{2} S _{2} O _{7}, H _{3} BO _{3}, H _{3} PO _{2}, H _{2} CrO _{4}, H _{2} SO _{3}$
Equilibrium
Solution:
Correct answer is '6.00'
