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Agriculture · Q70

Plant Pathology

Graduate and Post Graduate · Agriculture · question 70

Q70

Single super phosphate is manufactured from

A.
Rock phosphate
Answer
B.
DAP
C.
Bone meal
D.
None of these

Answer: Option A

Solution

Answer: Option A
Solution:
Single super phosphate is manufactured from Rock phosphate.
Superphosphate was made from rock phosphate ore by treatment with sulfuric acid.
Triple superphosphate is a component of fertilizer that primarily consists of monocalcium phosphate, Ca(H2PO4)2. Traditional routes for extraction of phosphate rock using sulfuric acid give single superphosphate, an approximate 1 : 1 mixture of Ca(H2PO4)2 and CaSO4 phosphogypsum.