Question

The oxidizing agent for the forward reaction in the equation in:
Al + NO2-= Al(OH)4+ NH3
a) Al3+
b) NH3
c) NO2-

d) None of the above

Answer 1

Answer:

None of the above...........

Answer 2

Answer:

D

Explanation:

In the reaction Al from oxidation state 0 changing to Al(OH)

4

−

oxidation state +3. The increase in oxidation state shows element is oxidized means reacting as a reducing agent.

And the other reactant in the reaction N in NO

2

−

from oxidation state +3 changing to NH

3

oxidation state −3. The decrease in oxidation state shows element is reduced means reacting as an oxidizing agent. Thus N is an oxidizing agent in the reaction.