pBlock ElementsII 1 Question 77
72. The total number of diprotic acids among the following is
| $\mathrm{H} _{3} \mathrm{PO} _{4}$ | $\mathrm{H} _{2} \mathrm{SO} _{4}$ | $\mathrm{H} _{3} \mathrm{PO} _{3}$ |
|---|---|---|
| $\mathrm{H} _{2} \mathrm{CO} _{3}$ | $\mathrm{H} _{2} \mathrm{S} _{2} \mathrm{O} _{7}$ | $\mathrm{H} _{3} \mathrm{BO} _{3}$ |
| $\mathrm{H} _{3} \mathrm{PO} _{2}$ | $\mathrm{H} _{2} \mathrm{CrO} _{4}$ | $\mathrm{H} _{2} \mathrm{SO} _{3}$ |
(2010)
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Answer:
Correct Answer: 72. 6
Solution:
- Diprotic acids $=6$
Others are
