Reaction of ortho-phosphoric acid with phosphate rock produces _________________?

Related Mcqs:

1. 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

2. Leaching of phosphate rock by strong ____________ acid produces phosphoric acid ?

   A. Sulphuric
   B. Hydrochloric
   C. Either A. or B.
   D. Neither A. nor B.

3. 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

4. Reaction of anhydrous liquid ammonia with ortho-phosphoric acid produces____________________?

   A. Ammonium phosphate
   B. Superphosphate
   C. Triple superphosphate
   D. None of these

5. Reaction of ortho-phosphoric acid with soda ash produces______________?

   A. Sodium Tributyl phosphate (STPP)
   B. Tricresyl phosphate
   C. Tributyl phosphate
   D. Nitrophosphate

6. Phosphoric acid is produced in wet process from phosphate rock and____________________?

   A. Dilute H2SO4
   B. Concentrated H2SO4
   C. Concentrated NHO3
   D. Concentrated HCl

7. Action of phosphoric acid on rock phosphate produces_________________?

   A. Superphosphate
   B. Triple superphosphate
   C. Nitrophosphate
   D. Diammonium phosphate

8. Reaction of ______________ acid with phosphate rock produces superphosphates?

   A. Hydrochloric
   B. Sulphuric
   C. Nitric
   D. Phosphoric

9. Reaction of dilute sulphuric acid with phosphate rock produces ____________________?

   A. Phosphoric acid
   B. Superphosphate
   C. Triple superphosphate
   D. Gypsum

10. Reaction of nitric acid and sulphuric acid with phosphate rock produces_________________?

    A. Nitrophosphate
    B. Diammonium phosphate
    C. Tricresyl phosphate
    D. Tributyl phosphate