MEDIUMMCQ SINGLEJEE Mains ChemistryInorganic ChemistryHydrogenHardness of Water

The formula for permutit or zeolite which is used as softener in ion-exchange method is

A.NaAlSiO4✓ Correct

B.NaAlO2

C.Ca3(PO4)2

D.Na2SO4

Explanation

Permutit is an inorganic complex salt existing with the formula 2 2 2 8 2 . Na Al Si O xH O . It is also known as zeolite or sodium aluminium silicate. The empirical formula of permutit is given as 4 NaAlSiO .

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