Oxidation Number Calculation Rules

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Questions and Answers

What is the average oxidation number of the four sulfur atoms in the species S4O6?

  • 2
  • 4.5
  • 2.5 (correct)
  • 3

When an element shows a fractional oxidation state in a compound, what should be understood about this value?

  • It indicates a mistake in the compound's formula.
  • It is always exactly half of the total oxidation state.
  • It represents the highest possible oxidation state.
  • It is the average oxidation number. (correct)

Which term is used to describe compounds like Fe3O4 and Mn3O4 that exhibit fractional oxidation states?

  • Fractional mixtures
  • Mixed oxides (correct)
  • Redox oxides
  • Fractionated compounds

What is the oxidation state of oxygen in O2+?

<p>+1/2 (B)</p> Signup and view all the answers

When writing equations for oxidation-reduction reactions using the oxidation number method, why is it important to know the formulas of reactants and products?

<p>To balance the equation properly (D)</p> Signup and view all the answers

In which species does each sulfur atom have an individual oxidation state of +5?

<p>S4O6 (D)</p> Signup and view all the answers

What can we conclude about the idea of fractional oxidation state based on the text?

<p>It is a useful concept to understand average oxidation numbers. (B)</p> Signup and view all the answers

'The reality is revealed by structures only.' What does this statement imply about determining oxidation states?

<p>Structural formulas are necessary to determine exact oxidation states. (B)</p> Signup and view all the answers

'Oxidation Number Method' is best illustrated by following which steps?

<p>'Step 1: Write down formulas for reactants and products.' (C)</p> Signup and view all the answers

'Fe3O4' is an example of a compound with what specific characteristic?

<p>+3 oxidation state for iron (A)</p> Signup and view all the answers

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