wiz-icon
MyQuestionIcon
MyQuestionIcon
1
You visited us 1 times! Enjoying our articles? Unlock Full Access!
Question

Explain the process of formation of iron oxide . Can you name this process of oxidation? Suggest measures how this can be prevented ? [5 MARKS]

Open in App
Solution

Explanation: 1 Mark
Naming: 1 Mark

Explanation : 1 Mark
Naming: 1 Mark
Suggestion: 3 Marks


When a piece of iron is left in the open for some time, it acquires a brownish film. This is the formation of Iron oxide,that is when iron combines with free oxygen in the presence of moisture in the air. This process is commonly known as rusting known as rusting.

Iron (Fe) + Oxygen (O2, from the air) + water (H2O) Rust (iron oxide) (Fe2O3.H2O) Both Oxygen and water or are essential for the process of rusting.

We can prevent rusting by following methods:

By painting or greasing: - by applying a coat of paint or grease regularly on iron articles .

By galvanizing: - Depositing a layer of zinc or chromium on iron. The process is known as galvanization.


flag
Suggest Corrections
thumbs-up
0
Join BYJU'S Learning Program
similar_icon
Related Videos
thumbnail
lock
Prevention of Corrosion
CHEMISTRY
Watch in App
Join BYJU'S Learning Program
CrossIcon