A.500-600?C
B.800-900?C
C.1400-1450?C
D.2000-2100?C
Related Mcqs:
- The electric furnace is used for the manufacture of elemental phosphorus from phosphate rock. The electrodes are made of
- Yellow phosphorus is converted to red phosphorus in covered retorts at a temperature of
- Raw materials for the manufacture of orthophosphoric acid by wet process are phosphate rock and
- Phosphate rock constitutes mainly of
- Which of the following allotropic forms of phosphorus is used in the manufacture of safety matches?
- Superphosphate is made by reacting phosphate rock with
- Triple superphosphate is made by reacting phosphate rock with
- In the reduction of a pest population, the balance of the natural enemies is maintained in:
- Which of the following temperatures represents the tempering temperature for C 30 steel?
- Triple superphosphate is made by reacting phosphate rock with orthophosphoric acid. It is represented by
