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What is the common oxidation state of nitrogen in ammonia (NH3)?

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Question: What is the common oxidation state of nitrogen in ammonia (NH3)?

Options:

  1. -3
  2. 0
  3. +1
  4. +3

Correct Answer: -3

Solution: 

In ammonia, nitrogen has an oxidation state of -3.

What is the common oxidation state of nitrogen in ammonia (NH3)?

Practice Questions

Q1
What is the common oxidation state of nitrogen in ammonia (NH3)?
  1. -3
  2. 0
  3. +1
  4. +3

Questions & Step-by-Step Solutions

What is the common oxidation state of nitrogen in ammonia (NH3)?
Correct Answer: -3
  • Step 1: Identify the chemical formula of ammonia, which is NH3.
  • Step 2: Recognize that ammonia consists of one nitrogen (N) atom and three hydrogen (H) atoms.
  • Step 3: Know that hydrogen typically has an oxidation state of +1.
  • Step 4: Calculate the total oxidation state contributed by the three hydrogen atoms: 3 H atoms × +1 = +3.
  • Step 5: Since the overall charge of ammonia is neutral (0), the oxidation state of nitrogen must balance the +3 from hydrogen.
  • Step 6: Set up the equation: Oxidation state of N + Total oxidation state of H = 0.
  • Step 7: Substitute the known values: Oxidation state of N + 3 = 0.
  • Step 8: Solve for the oxidation state of nitrogen: Oxidation state of N = -3.
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