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Building Materials - Section 3 :: Discussion
| 8. | Pick up the correct statement from the following: | |
| A. | The phenol is carbolic acid | |
| B. | The phenol is either extracted from coal-tar or prepared from benzene | |
| C. | Phenol reacts with formaldehyde, to form phenol formaldehyde resin | |
| D. | The plastics prepared from phenol-formaldehyde are used for paints, varnishes, w.c. seats | |
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