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Byju's Answer
Standard XII
Chemistry
Hardness of Water and Treatment
Identify the ...
Question
Identify the substance that is not a water softener.
A
N
a
O
H
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B
N
a
2
C
O
3
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C
N
a
2
A
l
2
S
i
2
O
8
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D
M
g
C
l
2
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Solution
The correct option is
D
M
g
C
l
2
The substance that is not a water softener
M
g
C
l
2
, which is responsible for permanent hardness of water.
Other compounds are used for softening of water.
Option D is correct.
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