Saved Bookmarks
| 1. |
Which of the following is known as freon which is used as a refrigerant ? |
| Answer» FREON is a colorless gas that is alsoknown as R-22. Dupont trademarked the name Freon. CFCS have been USED in refrigerationand aerosol cans for many years, but in 1974, a RESEARCHER at the University of California hypothesized that CFCs were destroying the ozone layer. | |