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प्रश्न
Name two metals which resist corrosion due to the formation of a thin, hard and impervious layer of oxide on their surface.
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उत्तर
Aluminium and zinc are two metals that resist corrosion due to the formation of a thin, hard and impervious layer of oxide on their surface. Aluminium and zinc form tough layers of aluminium oxide and zinc oxide by reacting with air.
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संबंधित प्रश्न
What is an alloy?
Write two methods of preventing the rusting of iron.
Fill in the following blanks with suitable words:
............ and .............. are necessary for the rusting of iron.
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What are the special properties of stainless steel?
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In stainless steel alloy, iron metal is mixed with:
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(b) Cr and Ni
(c) Cr and Sn
(d) Cu and Ni
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Give reason.
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Either oxygen or moisture is essential for rusting.
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- Which process is shown in the figure?
- Explain the chemical reaction shown in the figure.
- Write the reactions on anode and cathode.
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