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)
Subjective Questions
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Solution:
- Diprotic acids $=6$
Others are
