Hardness of water can be temporary or permanent. Wrong Match about removal of hardness of water among the following is

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Clarke’s process ……… Na2CO3

Calgon process ……. Na2Na4PO36

Permutit process …….. NaAlSiO4. xH2O

Ionic exchange process ….. RCOOH & RNH3+OH-

answer is A.

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Detailed Solution

CaOH2 is the reagent used in Clarke’s process.

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