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Standard XII
Chemistry
Hardness of Water and Treatment
Question
Hard water is passed through an ionic exchange resin containing
−
S
O
3
H
group. The outcoming water is free of the following ions_________.
C
l
−
N
O
−
3
H
3
O
+
C
a
+
2
A
C
l
−
B
N
O
−
3
C
H
3
O
+
D
C
a
+
2
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Solution
Verified by Toppr
Ion exchange resin which contain
S
O
3
H
can remove
C
a
+
2
ion from the water.
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