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Chemistry
Chemistry
Problem
Na
2
CrO
4
\text{Na}_2\text{CrO}_4
Na
2
CrO
4
and
Fe
2
O
3
\text{Fe}_2\text{O}_3
Fe
2
O
3
are separated by : a. dissolving in conc.
H
2
SO
4
\text{H}_2\text{SO}_4
H
2
SO
4
b. dissolving in
NH
3
\text{NH}_3
NH
3
c. dissolving in
H
2
O
\text{H}_2\text{O}
H
2
O
d. dissolving in dil.
HCl
\text{HCl}
HCl
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