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Questions and Answers
What is oxidation in redox reactions?
What is oxidation in redox reactions?
- Decrease in oxidation state
- Gain of electrons
- Loss of electrons
- Increase in oxidation state (correct)
Which of the following is NOT a class of redox reactions?
Which of the following is NOT a class of redox reactions?
- Electron-transfer
- Atom transfer
- Proton-transfer (correct)
- Both A and B
What is a redox pair?
What is a redox pair?
- Involved in a particular reaction (correct)
- Reducing and oxidizing form
- Both A and B
- None of the above
Which one of the following is a good reducing agent?
Which one of the following is a good reducing agent?
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What is a reducing agent in redox reactions?
What is a reducing agent in redox reactions?
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What is a redox couple?
What is a redox couple?
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What is hydrogen gas used for in redox reactions?
What is hydrogen gas used for in redox reactions?
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Study Notes
- Redox reactions involve changes in oxidation states of substrates.
- Oxidation involves loss of electrons or increase in oxidation state, while reduction involves gain of electrons or decrease in oxidation state.
- There are two classes of redox reactions: electron-transfer and atom transfer.
- Redox is a combination of reduction and oxidation.
- Reductant transfers electrons to oxidant in redox reactions.
- Oxidant removes electrons and is reduced, while reducing agent transfers electrons and is oxidized.
- Redox pair is involved in a particular reaction, while redox couple is reducing and oxidizing form.
- Oxidants remove electrons, while reducers donate electrons.
- Electropositive elemental metals and hydride transfer reagents are good reducing agents.
- Hydrogen gas is also used as a source of H atoms for reduction.
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