A. Meta-phosphoric acid
B. Pyrophosphoric acid
C. No change in it
D. None of these
Related Mcqs:
- Heating of ortho-phosphoric acid to about 900°C, produces_________________?
A. Meta-phosphoric acid
B. Pyrophosphoric acid
C. No change in it
D. None of these - Which of the following solvents is used for the extraction of H3PO4 from CaCl2 solution during manufacture of ortho-phosphoric acid by wet process employing hydrochloric acid leaching ?
A. Isopropyl alcohol
B. Butyl alcohol
C. Toluene
D. Hexane - Reaction of anhydrous liquid ammonia with ortho-phosphoric acid produces____________________?
A. Ammonium phosphate
B. Superphosphate
C. Triple superphosphate
D. None of these - Reaction of ortho-phosphoric acid with soda ash produces______________?
A. Sodium Tributyl phosphate (STPP)
B. Tricresyl phosphate
C. Tributyl phosphate
D. Nitrophosphate - Reaction of ortho-phosphoric acid with phosphate rock produces _________________?
A. Superphosphate
B. Triple superphosphate
C. Meta-phosphoric acid
D. Monoammonium phosphate - Triple superphosphate which contains about 46% P2O5 is produced by the reaction of phosphate rock with ortho phosphoric acid of_____________ percent concentration?
A. 25-28
B. 52-54
C. 75-80
D. > 98 - Leaching of phosphate rock by strong ____________ acid produces phosphoric acid ?
A. Sulphuric
B. Hydrochloric
C. Either A. or B.
D. Neither A. nor B. - Heating a mixture of phosphate rock, coke and sand in an electric furnace produces___________________?
A. Phosphoric acid
B. Ammonium phosphate
C. Phosphorous
D. Superphosphate - H4P2O7 is the chemical formula of _____________ phosphoric acid?
A. Pyro
B. Ortho
C. Meta
D. None of these - Phosphoric acid is produced in wet process from phosphate rock and____________________?
A. Dilute H2SO4
B. Concentrated H2SO4
C. Concentrated NHO3
D. Concentrated HCl
