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)

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)
by

1 Answer

Answer :

(A) Permit the use of alum as a coagulant
by

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