JAMB - Chemistry (1981 - No. 28)
Which of the following statements about phosphorus is NOT correct?
Phosphorus is a solid mineral
Phosphorus is obtained by oxidation reaction of phosphate
Phosphorus exists in two allotropic forms
Both forms of phosphorus are interconvertible
Yellow phosporus ignites when rubbed on a rough surface
Explanation
The main allotropes of phosphorus include the white phosphorus, red phosphorus and black phosphorus.
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