MCQOPTIONS
Saved Bookmarks
| 1. |
Phosphorus is manufactured by heating in a electric furnace a mixture of NCERT 1977; CPMT 1974, 78, 81, 86] |
| A. | Bone ash and coke |
| B. | Bone ash and silica |
| C. | Bone ash, silica and coke |
| D. | None of these |
| Answer» D. None of these | |