chapter 5 Changes Around Us: Physical and Chemical -Part 4

A nail is coated with paint. What is the main purpose?

Type: MCQ • Marks: 1
A nail is coated with paint. What is the main purpose?
Options
A. To prevent contact with air and moisture
B. To supply oxygen for rusting
C. To change iron into zinc
D. To make nail melt
Explanation
Paint acts as a barrier against conditions that cause rusting.
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Class 7th Curiosity

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