MCQOPTIONS
Saved Bookmarks
| 1. |
Which of the following is not a composition of Nernst glower or Nernst filament? |
| A. | oxides of zirconium |
| B. | oxides of barium |
| C. | oxides of yitrium |
| D. | oxides of thorium |
| Answer» C. oxides of yitrium | |