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प्रश्न
Name any two metals which do not corrode easily.
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उत्तर
Gold and platinum are two metals that do not corrode easily. These two metal are highly non-reactive; therefore, they have a very high resistance to corrosion.
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संबंधित प्रश्न
What is an alloy?
What are alloys?
Fill in the following blank with suitable word:
The process of depositing a thin layer of zinc on iron articles is called .............
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Explain why, when a copper object remains in damp air for a considerable time, a green coating is formed on its surface. What is this process known as?
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(b) Cr and Ni
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(b) copper oxide
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Anodizing
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| SUBSTANCE | MELTING POINT (K) | ELECTRICAL CONDUCTIVITY | |
| SOLID | LIQUID/ AQUEOUS | ||
| A | 295 | Good | Good |
| B | 1210 | Poor | Good |
| C | 1890 | Poor | Good |
| D | 1160 | Poor | Poor |
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