The p-Block Elements — Chemistry STD 12 Science — Question
Gujarat BoardEnglish MediumSTD 12 ScienceChemistryThe p-Block Elements1 Mark
MCQ
Among these ores the highest phosphorus content is in:
A
Chlorapatite.
✓
Phosphorite.
C
Fluorspar.
D
All have equal content.
✓
Answer
Correct option: B.
Phosphorite.
Phosphorite ore is the ore that has the highest phosphorus content.
Percentage of $P$ in phosphorite
$=\frac{69}{279}\times100=22.22\%$
In flourapatite and chlorapatite the percentage content of phosphorus is $20.32\%$ and $19.62\%$ respectively.
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