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Chemistry CBSE Live product
Class 7
The World of Metals and Non-metals
Effect of water on materials
5.
Corrosion
Question:
1
m.
Select
the
best answer
for the following question:
Assertion (A)
Corrosion reduces the strength of the metals.
Reason (R)
A part of the metal is converted into oxides, carbonates or sulphides
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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