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Standard IX
Chemistry
Hardness of Water:Causes, Types and Treatments
Question
............ process is used for the removal of hardness of water.
Baeyer
Hoope
Serpeck
Calgon
A
Baeyer
B
Hoope
C
Calgon
D
Serpeck
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Solution
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Calgon process is used for the removal of hardness of water.
Calgon is a trade name of a complex salt, sodium hexametaphosphate
(
N
a
P
O
3
)
6
.
It is used for softening hard water.
Option A is correct.
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