What is the oxidation number of nitrogen in Al(NO₃)3?

Question

Quizplus · Accepted Answer

The oxidation number of aluminum is always +3.

The overall charge of nitrate ion (NO₃⁻) is -1, so the sum of oxidation numbers of nitrogen and oxygen in nitrate is -1.

Let x be the oxidation number of nitrogen. Then, we can write:

(+3) + 3(x) + (3 × (-2)) = 0 (the sum of oxidation numbers in the compound is zero)

Solving for x, we get:

x = +5

Therefore, the oxidation number of nitrogen in Al(NO₃)3 is +5.

What Is the Oxidation Number of Nitrogen in Al(NO₃)3