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In a redox reaction, if the oxidation state of an element decreases, what is it

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Question: In a redox reaction, if the oxidation state of an element decreases, what is it undergoing? (2021)

Options:

  1. Oxidation
  2. Reduction
  3. Neutralization
  4. Decomposition

Correct Answer: Reduction

Exam Year: 2021

Solution: 

If the oxidation state of an element decreases, it is gaining electrons, which is known as reduction.

In a redox reaction, if the oxidation state of an element decreases, what is it

Practice Questions

Q1
In a redox reaction, if the oxidation state of an element decreases, what is it undergoing? (2021)
  1. Oxidation
  2. Reduction
  3. Neutralization
  4. Decomposition

Questions & Step-by-Step Solutions

In a redox reaction, if the oxidation state of an element decreases, what is it undergoing? (2021)
  • Step 1: Understand what oxidation state means. It is a number that shows how many electrons an atom has gained or lost.
  • Step 2: Know that a decrease in oxidation state means the atom is losing positive charge or gaining negative charge.
  • Step 3: Realize that gaining negative charge means gaining electrons.
  • Step 4: Remember that the process of gaining electrons is called reduction.
  • Redox Reactions – Redox reactions involve the transfer of electrons, where oxidation is the loss of electrons and reduction is the gain of electrons.
  • Oxidation States – Oxidation states are a way to keep track of electron transfer in chemical reactions, indicating the degree of oxidation or reduction of an element.
  • Reduction – Reduction is the process where an element gains electrons, resulting in a decrease in its oxidation state.
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