In wet process (Hydrochloric acid leaching) for the manufacture of orthophosphoric acid solvent used for the extraction of H3PO4 from CaCI2 solution is
A.benzene
B.butanol
C.methyl ethyl ketone
D.hexane
Category: Fertilizer Technology Mcqs
Superphosphate contains
A.16-20% P2O5
B.30-35% P2O5
C.42-50% P2O5
D.70-75% P2O5
Red phosphorus is chemically unreactive because
A.it does not contain P-P bonds
B.it does not contain tetrahedral P4 molecules
C.it does not catch fire in air even upto 200?C
D.it has a polymeric structure
The phosphorus vapours are composed of
A.P
B.P2
C.P3
D.P4
