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Tardigrade
Question
Chemistry
If NaOH is added to an aqueous solution of zinc ions, a white precipitate appears and on adding excess of NaOH , the precipitate dissolves. In this solution zinc exist in the
Q. If
N
a
O
H
is added to an aqueous solution of zinc ions, a white precipitate appears and on adding excess of
N
a
O
H
, the precipitate dissolves. In this solution zinc exist in the
1376
233
Jamia
Jamia 2011
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A
cationic part
B
anionic part
C
both in cationic and anionic part
D
there is no zinc in the solution
Solution:
Z
n
2
+
+
2
O
H
−
Z
n
(
O
H
)
2
↓
Z
n
(
O
H
)
2
(
s
)
+
2
O
H
−
(
a
q
)
Z
n
O
2
2
−
(
a
q
)
+
2
H
2
O
(
l
)