Rock phosphate contains

A. 18 - 20% P₂O₅

B. 20 - 30% P₂O₅

C. 10 - 15% P₂O₅

D. 30 - 40% P₂O₅

Answer: Option B

Solution(By Examveda Team)

Rock phosphate contains 20 - 30% P₂O₅.
Phosphate rock is the primary source of phosphorus (P) and the main raw material for phosphate fertilizers.
Phosphate ore is extracted from sedimentary deposits (85% of world production) and magmatic deposits. Phosphate ore grades range between 2% and 35% phosphorus pentoxide (P₂O₅).