Question

question 25 (1 point)
what is the single oxidation number of aluminum in al(s)?
0
+1
-1
+3
-3

Explanation:

Step1: Recall oxidation number rule for elements

The oxidation number of an element in its elemental (free) state is 0. Aluminum in \( \text{Al}(s) \) is in its elemental form (solid aluminum metal, not combined with other elements).

Step2: Apply the rule to Al(s)

Since \( \text{Al}(s) \) is elemental aluminum, its oxidation number is 0.

Answer:

0 (corresponding to the option "0")