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Chemistry
Chemistry
Problem
The total number of diprotic acids among the following is.....
H
3
PO
4
\text{H}_3\text{PO}_4
H
3
PO
4
,
H
2
SO
4
\text{H}_2\text{SO}_4
H
2
SO
4
,
H
3
PO
3
\text{H}_3\text{PO}_3
H
3
PO
3
,
H
2
CO
3
\text{H}_2\text{CO}_3
H
2
CO
3
,
H
2
S
2
O
7
\text{H}_2\text{S}_2\text{O}_7
H
2
S
2
O
7
H
3
BO
3
\text{H}_3\text{BO}_3
H
3
BO
3
,
H
3
PO
2
\text{H}_3\text{PO}_2
H
3
PO
2
,
H
2
CrO
4
\text{H}_2\text{CrO}_4
H
2
CrO
4
,
H
2
SO
3
\text{H}_2\text{SO}_3
H
2
SO
3
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