

MCQOPTIONS
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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 | |