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Chemistry CBSE Live product
Class 10 (2026-27)
Chemical reactions and equations
Corrosion and Rancidity
1.
Rusting
Question:
2
m.
Choose
the correct answer:
1.
If iron nails are exposed to humid air and rust develops, which of the following conclusions is accurate?
Iron nails chemically reacted with air and moisture
Rusting is a reversible change
Iron gets melted
Rusting is a physical change
2.
Why the process of rusting is considered a slow chemical change?
Rusting occurs slowly under natural conditions
It happens in short time
It occurs only under sunlight
It can be reversed
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