What is a simple way to identify oxidation?
Answer and explanation
Correct answer: Addition of oxygen
At the introductory level, oxidation can be identified as the addition of oxygen to a substance. For example, magnesium combines with oxygen to form magnesium oxide, so magnesium is oxidised. In broader definitions, oxidation may also mean loss of electrons or removal of hydrogen, but those are not the simple oxygen-based criterion asked here. Removal of oxygen is reduction, and freezing is a physical change.
Frequently asked questions
What is the correct answer to this question?
Addition of oxygen
Why is this the correct answer?
At the introductory level, oxidation can be identified as the addition of oxygen to a substance. For example, magnesium combines with oxygen to form magnesium oxide, so magnesium is oxidised. In broader definitions, oxidation may also mean loss of electrons or removal of hydrogen, but those are not the simple oxygen-based criterion asked here. Removal of oxygen is reduction, and freezing is a physical change.
Which subject and chapter does this question cover?
This is a Class 10 Science question. Chapter: Chemical Substances – Nature and Behaviour. Topic: Chemical Reactions and Equations.
