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Match the following columns...

Match the following columns

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The correct Answer is:
A, B, C, D
A `to c By the process of boiling we can remove temporary hardness in which bicarbonates present in water decompose to carbonates which are precipitated.
B `to` d Clark.s method involves the addition of slaked lime to water either in solid or liquid form to remove temporary hardness.
C `to` b Addition of washing soda helps in removing both temporary and permanent hardness.
D `to` a Ion exchange method consists of solids called ion exchange resins.
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