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Chemistry CBSE Live product
Class 10 (2025-26)
Metals and non-metals
PTA Revision
4.
Corrosion and its prevention
Question:
1
m.
Read the following statements and pick the correct option:
Assertion (A)
When iron is exposed to air for an extended period of time, it forms a rusty coating.
Reason (R)
This is due to iron's reactivity with dry air.
Both A and R are true and R is the correct explanation of A
Both A and R are true but R is not the correct explanation of A
A is true but R is false
A is false but R is true
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