Oxidation MCQs Quiz | Class 10
Test your understanding of Class X Science (Code 086), Unit I: Chemical Substances – Nature and Behaviour. This quiz focuses on Oxidation, covering its definition, the concept of oxygen addition, and the loss of electrons. Solve these 10 MCQs, check your score, and download the answer key PDF for exam preparation.
Overview of Oxidation
Oxidation is a fundamental chemical process studied in Class 10 Science under Chemical Reactions and Equations. In simple terms, it involves the addition of oxygen to a substance or the removal of hydrogen from a substance. In more advanced terms (electronic concept), it is defined as the loss of electrons by an atom, ion, or molecule.
Key Concepts
- Oxygen Addition: When an element combines with oxygen. Example: Magnesium burning in air to form Magnesium Oxide.
- Hydrogen Removal: When hydrogen is removed from a compound during a reaction.
- Electronic Definition: The process where a chemical species loses one or more electrons.
- Daily Life Examples: Respiration, combustion, rusting of iron, and rancidity of oils.
Comparison: Oxidation vs Reduction
| Feature | Oxidation | Reduction |
|---|---|---|
| Oxygen | Gain | Loss |
| Hydrogen | Loss | Gain |
| Electrons | Loss | Gain |
Extra Practice Questions
- What happens to copper powder when heated in a china dish?
- Why do chips manufacturers flush bags with nitrogen gas?
- Is the conversion of ethanol to ethanoic acid an oxidation reaction?
- Identify the substance oxidized in: ZnO + C to Zn + CO.
- Define corrosion with one example other than iron rusting.
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