6545Chemical EngineeringMedium
Cation exchange resins (0.3 to 1 mm size) used in water treatment is prepared from ________ resins?
APhenol formaldehyde
BMelamine formaldehyde
CEpoxy
DUrea formaldehyde
Correct answer
D. Urea formaldehyde
Explanation
The correct answer is Urea formaldehyde.