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Problem
Zinc carbonate is precipitated from zinc sulphate solution by the addition of : a.
Na
2
CO
3
\text{Na}_2\text{CO}_3
Na
2
CO
3
b.
CaCO
3
\text{CaCO}_3
CaCO
3
c.
MgCO
3
\text{MgCO}_3
MgCO
3
d.
NaHCO
3
\text{NaHCO}_3
NaHCO
3
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