MCQOPTIONS
Saved Bookmarks
| 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 | |