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3. Metal and Non-Metal
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Q36 of 400 Page 192

Why is an iron grill painted frequently?

To prevent the iron from rusting, it is painted frequently.

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All 400 →
35 Why does aluminium not corrode right through? 35 What is meant by 'anodising'? Why is it done? 36 Explain why, though aluminium is more reactive than iron, yet there is less corrosion of aluminium when both are exposed to air. 37 Name the method by which aluminium metal is extracted.
Questions · 400
3. Metal and Non-Metal
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