Chemistry
Grade-10
Easy
Question
Assertion (A): Anodising is a process to prevent metal from corrosion.
Reason (R): Anodising is a process of coating iron with a layer of zinc.
- 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.
Hint:
A is true but R is false
The correct answer is: A is true but R is false.
The process of applying a thick coating of oxides on metals like aluminium and its alloys to give them a better surface that can resist to corrosion and other damages to metal and its surface is referred to as anodising.
The process of coating iron with a layer of zinc is called galvanisation.
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