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Chemistry
Chemistry
Problem
An aqueous solution is prepared by dissolving a mixture containing
ZnCl
2
\text{ZnCl}_2
ZnCl
2
,
CdCl
2
\text{CdCl}_2
CdCl
2
and
CuCl
2
\text{CuCl}_2
CuCl
2
. Now
H
2
S
\text{H}_2\text{S}
H
2
S
gas is passed through the aqueous solution of salt to form precipitate. a.
CdS
\text{CdS}
CdS
b.
CuS
\text{CuS}
CuS
c.
ZnS
\text{ZnS}
ZnS
d. No ppt.
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