A. Uses lower grade phosphate rock
B. Requires lower capital investment in the plant
C. Produces lower purity acid
D. Is very costly
Related Mcqs:
- 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 - Electric process as compared to wet process (for the manufacture of phosphoric acid) ?
A. Can use only high grade phosphate rock
B. Is used less frequently
C. Produces a valuable by-product called gypsum
D. Is weak acid process - Heating of coke, sand & phosphate rock in an electric furnace is done for the manufacture of_________________?
A. Phosphoric acid
B. Superphosphate
C. Phosphorous
D. Triple superphosphate - Leaching of phosphate rock by strong ____________ acid produces phosphoric acid ?
A. Sulphuric
B. Hydrochloric
C. Either A. or B.
D. Neither A. nor B. - (CH3 C6 H4)3 PO4 is the chemical formula of__________________?
A. Triple superphosphate
B. Tricresyl phosphate
C. Fluorapatite
D. Superphosphate - CaH4(PO4)2 is the chemical formula of ___________________?
A. Superphosphate
B. Triple superphosphate
C. Calcium phosphate
D. Meta phosphoric acid - 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 - 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 - 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
