what is the iupac name of the ion formed by phosphorus?\na) phosphide(iii) ion\nb) phosphoide\nc)…

what is the iupac name of the ion formed by phosphorus?\na) phosphide(iii) ion\nb) phosphoide\nc) phosphide\nd) phosphorus(iii) ion
Answer
Brief Explanations:
Phosphorus forms an anion by gaining electrons. The IUPAC - approved name for the anion formed by phosphorus is phosphide. There is no need for the (III) in the name as the charge of the phosphide ion is well - known without it, and 'phosphoide' is an incorrect term.
Answer:
C. Phosphide