Related Questions

Triple superphosphate is manufactured by reacting
A Phosphate rock with phosphoric acid
B Phosphate rock with sulphuric acid
C Phosphate rock with nitric acid
D Ammonium phosphate with phosphoric acid
Triple superphosphate is chemically represented as
A CaF2.3Ca3(PO4)2
B 3Ca3(PO4)2
C Ca(PO3)2
D Ca(H2PO4)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
Reaction of nitric acid and sulphuric acid with phosphate rock produces
A Nitrophosphate
B Diammonium phosphate
C Tricresyl phosphate
D Tributyl phosphate
Sulphuric acid is mixed with ground phosphate rock (to produce phosphoric acid) in a steel digestor lined with
A Acidic refractory
B Rubber
C Karbate
D Lead or acid-proof bricks
Reaction of __________ acid with phosphate rock produces superphosphates.
A Hydrochloric
B Sulphuric
C Nitric
D Phosphoric
Action of phosphoric acid on rock phosphate produces
A Superphosphate
B Triple superphosphate
C Nitrophosphate
D Diammonium phosphate
Reaction of dilute sulphuric acid with phosphate rock produces
A Phosphoric acid
B Superphosphate
C Triple superphosphate
D Gypsum
Reaction of orthophosphoric acid with phosphate rock produces
A Superphosphate
B Triple superphosphate
C Metaphosphoric acid
D Monoammonium phosphate
Phosphoric acid is produced in wet process from phosphate rock and
A Dilute H2SO4
B Concentrated H2SO4
C Concentrated NHO3
D Concentrated HCl

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