Cation exchange resins (0.3 to 1 mm size) used in water treatment is p – McqOptions

MCQOPTIONS

1.	Cation exchange resins (0.3 to 1 mm size) used in water treatment is prepared from __________ resins.
A.	epoxy
B.	phenol formaldehyde
C.	urea formaldehyde
D.	melamine formaldehyde
Answer» D. melamine formaldehyde

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