the oxidation number of p4 is\nselect one:\n a. +2\n b. -2\n c. +4\n d. 0

the oxidation number of p4 is\nselect one:\n a. +2\n b. -2\n c. +4\n d. 0
Answer
Explanation:
Step1: Recall oxidation - number rule for elements
The oxidation number of an element in its elemental form is 0.
Step2: Identify the form of phosphorus
$P_4$ is the elemental form of phosphorus.
Answer:
d. 0