P-Block Elements Ques 590
Question: Superphosphate of lime is obtained from the reaction of:
Options:
A) Bones with gypsum.
B) Calcium phosphate with sulphuric acid.
C) Calcium phosphate with $ HCl $ .
D) Calcium carbonate with phosphoric acid.
Show Answer
Answer:
Correct Answer: B
Solution:
$ Ca_3{{( PO_4 )}_2}+2H_2SO_4+5H_2O\to $ $ Ca{{( H_2PO_4 )}_2}.H_2O+2CaSO_4.2H_2O $
