Discussion :: Fertiliser Technology - Section 1 (Q.No.16)
Reaction of dilute sulphuric acid with phosphate rock produces
Answer: Option A
No answer description available for this question.
|Rathi said: (Jun 28, 2014)|
|Phosphoric acid is produced from fluorapatite, known as phosphate rock, 3Ca3(PO4)2.CaF2, by the addition of concentrated (93%) sulfuric acid in a series of well-stirred reactors.|
|Mahesh Konduri said: (Sep 25, 2014)|
|So concentrated sulphuric acid (93-98%) is used in manufacture of phosphoric acid. Where as dilute sulphuric acid (62-70%) is used in manufacture of super phosphate.|
|Munindra said: (Oct 17, 2014)|
|Phosphate rock Ca10(PO4)2F6 + 7H2SO4 gives 3CaH4(PO4)2 + 7CaSO4 + 2HF.
Here concentration of sulphuric acid is 55 to 75%.
It means super phosphate should be the other answer.
So according to me its a multiple answer question where A and B both are correct.
If I am wrong could some one clear my doubt.
|Manish said: (Oct 9, 2015)|
|Answer is given wrong. It should be B.
Phosphoric acid + Phosphate rock gives Trile superphosphate.
Sulfuric acid + Phosphate rock gives Superphosphate.
|Ramesh Vishwakarma said: (Dec 7, 2016)|
|Triple super phosphate is the right answer.|
|Vijaykumar said: (Jul 4, 2018)|
|Phosphate rock with conc H2SO4 makes phosphoric acid but phosphate rock and Dil H2SO4 produce Super phosphate.|
|Ravi Gupta said: (Nov 19, 2018)|
|No, Phosphate rock with dilute sulphuric acid produces superphosphate. For phosphoric acid con acid is used.|
|Ehsan Ahamad said: (Jun 3, 2020)|
|Right answer is B.
Sulphuric acid + phosphate rock = superphosphate.
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