Question

The three important oxidation states of phosphorus are

• A. $-3$, $+3$ and $+2$
• B. $-3$, $+3$ and $+5$
• C. $-3$, $+3$ and $-5$
• D. $-3$, $+3$ and $+4$

Answer 1

Answer: (B)

Phosphorus shows three most common oxidation states of $-3(P{H}_3),+3(PC{l}_3)$ and $+5(PC{l}_5)$