The purpose of adding Na2CO3 to water of low alkalinity is to – McqOptions

MCQOPTIONS

1.	The purpose of adding Na2CO3 to water of low alkalinity is to
A.	permit the use of alum as a coagulant.
B.	increase the softening capacity of zeolite.
C.	facilitate easy regeneration of zeolite.
D.	all (a), (b) and (c).
Answer» B. increase the softening capacity of zeolite.

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