_P‚Äö√á√áO‚Äö√á√ñ percentage in the phosphoric acid produced by wet process is about$?

_P‚Äö√á√áO‚Äö√á√ñ percentage in the phosphoric aci

1.	_P‚Äö√á√áO‚Äö√á√ñ percentage in the phosphoric acid produced by wet process is about$?
A.	10
B.	30
C.	50
D.	70
Answer» C. 50