In the reaction 3H2 + N2 → 2NH3, which element is oxidized?

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Question: In the reaction 3H2 + N2 → 2NH3, which element is oxidized?

Options:

Correct Answer: H

Solution:

Hydrogen (H) is oxidized as it goes from an oxidation state of 0 to +1 in NH3.

In the reaction 3H2 + N2 → 2NH3, which element is oxidized?

In the reaction 3H2 + N2 → 2NH3, which element is oxidized?

Step 1: Identify the reactants and products in the reaction: 3H2 + N2 → 2NH3.
Step 2: Determine the oxidation states of each element in the reactants and products.
Step 3: In H2, hydrogen (H) has an oxidation state of 0 because it is in its elemental form.
Step 4: In NH3, hydrogen (H) has an oxidation state of +1.
Step 5: Compare the oxidation states of hydrogen before and after the reaction: it goes from 0 to +1.
Step 6: Since the oxidation state of hydrogen increases, hydrogen is oxidized.

Oxidation and Reduction – Understanding oxidation states and identifying which element is oxidized or reduced in a chemical reaction.
Balancing Chemical Reactions – Recognizing the stoichiometry of the reaction and how it relates to the transfer of electrons.