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Qualitative Analysis: Cations
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Group I and group II cations (Pb, Cu, Bi, Cd, As, Sb, Sn)
NEET level
Single correct option
Difficulty 1 of 3
qc008
A yellow precipitate is obtained when
H
X
2
S
is passed into a dilute-
HCl
solution of a salt. The cation present is
A
Zn
X
2
+
B
Cd
X
2
+
C
Cu
X
2
+
D
Pb
X
2
+
Answer: B
CdS
is yellow.
PbS
and
CuS
are black, and
ZnS
(white) does not precipitate in acidic medium.
Practice Qualitative Analysis: Cations
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