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Problem
Problem
Which of the following parent oxy acid does not have its hypo acid ? a.
H
2
SO
2
\text{H}_2\text{SO}_2
H
2
SO
2
b.
HNO
2
\text{HNO}_2
HNO
2
c.
H
3
PO
3
\text{H}_3\text{PO}_3
H
3
PO
3
d.
HClO
3
\text{HClO}_3
HClO
3
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