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Chemistry
Chemistry
Problem
On reaction with dilute
H
2
SO
4
\text{H}_2\text{SO}_4
H
2
SO
4
, which of the following salts will give out a gas that turns an acidified dichromate paper green ? a.
Na
2
CO
3
\text{Na}_2\text{CO}_3
Na
2
CO
3
b.
Na
2
S
\text{Na}_2\text{S}
Na
2
S
c.
ZnSO
3
\text{ZnSO}_3
ZnSO
3
d. FeS
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