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Problem
The pair of compounds which can not exist together in aqueous solution is : a.
Na
2
CO
3
\text{Na}_2\text{CO}_3
Na
2
CO
3
and
NaHCO
3
\text{NaHCO}_3
NaHCO
3
b.
NaHCO
3
\text{NaHCO}_3
NaHCO
3
and
NaOH
\text{NaOH}
NaOH
c.
NaOH
\text{NaOH}
NaOH
and
Na
2
HPO
4
\text{Na}_2\text{HPO}_4
Na
2
HPO
4
d.
NaOH
+
Na
2
HPO
3
\text{NaOH} + \text{Na}_2\text{HPO}_3
NaOH
+
Na
2
HPO
3
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