CuO + H2 → Cu + H2O This equation is an example of:
The correct answer is Redox.
Key Points
- Redox reactions involve changes in the oxidation state of the substrate.
- Loss of electrons or increase in oxidation state are both examples of oxidation.
- Gaining electrons or decreasing oxidation state are both considered reduction.
- In the reaction, CuO + H2 → Cu + H2O, Cu is reduced while hydrogen is oxidized.
- Redox reactions fall into one of two categories:
- Electron-transfer:
- During electron transfer, typically only one electron goes from the reducing agent to the oxidant.
- It is common to discuss such redox reactions in terms of redox couples and electrode potentials.
- Atomic transfer:
- Atomic transfer occurs when one substrate gives way to another.
Additional Information
- Oxidation:
- A molecule, atom, or ion undergoes oxidation as a result of a process when it loses electrons.
- Decomposition:
- The process of recycling nutrients consumed by an organism (plant or animal) to build its body begins with decomposition.
- Reduction:
- Reduction is the term used to describe that reaction in which a reactant gains electrons.
Important Questions from Chemical Reaction
An iron nail dipped in copper sulphate solution turns brown. This is due to which one of the following types of reactions?
Copper sulphate crystals available in the market are blue coloured crystals. By careful heating, they turn to white colour. Which one of the following is responsible for the blue colour?
Airbags work on the principle of a chemical reaction triggered by the impact producing a gaseous product that causes a sudden volume change. Which one among the following chemical conversions is responsible for this?
Which one of the following is the correct reactivity series with water?
Silver artefacts get tarnished in air due to the formation of
