Question

Among these ores the highest phosphorus content is in :

• A. chlorapatite
• B. phosphorite
• C. fluorspar
• D. all have equal content

Answer 1

The correct option is B phosphorite

Phosphorite ore is the ore that has the highest phosphorus content.
Percentage of $P$ in phosphorite
$=\frac{62}{279}\times 100=22.22$%
In flourapatite and chlorapatite the percentage content of phosphorus is 20.32% and 19.62% respectively.