Can you explain the answer of this question below:For which of the following metal, corrosion is useful?A:AluminiumB:SilverC:CopperD:IronThe answer is a.

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In Silver corrosion is harmful and same with copper and iron but with aluminum corrosion is very helpful because in aluminum corrosion form a layer of thin sheet which protect from further corrosion.

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The resulting  aluminum oxide is a thin, hard layer that actually protects the metal from further corrosion.,,,So ans is ,,,'C'

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In aluminium corrosion is useful coz of the oxide layer formation. When aluminium metal kept in open air, then a thin oxide layer forms on its surface which prevents further corrosion of the metal

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Aluminium

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Aluminium...

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Aluminium

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Ans is aluminium as oxidation or corrosion of aluminium make it food safe and stop further corrosion

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Because it decrase the reactivity of Aluminum by making a layer of Aluminium oxide .

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In Aluminum corrosion gives advantage because of the oxide layer formation.When aluminum metal kept in open air , then a thin oxide layer forms on its surface which prevents further corrosion of the metal

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Aluminium because it prevents further corrosion..

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In aluminium corrosion is useful because it makes a thin layer which prevents it from further corrosion

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Aluminium

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Aluminium as aluminium oxide (al2o3) improve it's protection

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Corrosion of aluminium creates a protective layer of AlO3
that exhibits a property of savings aluminium from any further corrosion......

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The anwer is Al. it as because aluminium forms a layer of al2o3 which is protective in nature and hence prevents further oxidation .

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Corrosion of Aluminium is useful because when aluminium corrodes it forms a thin oxide layer on it and prevents from further corrosion

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Aluminum corroded and make a thin layer to protect itself

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When aluminiun corrodes it forms a layer of aluminum oxide. This layer of aluminium oxide protects aluminium from further corrosion.

Hence, corrosion is beneficial for aluminium.

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The corrosion of aluminium is useful

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A)Aluminium

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The correct answer is A

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Aluminium Metal is the answer.

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Aluminum reacts with oxygen present in the air and forms a layer of aluminum oxide which protects from corrosion or rusting

hope it's helpful

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Because aluminium forms a layer of oxide which prevents it from further oxidation

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Corrosion and its usefulness

Corrosion is a natural process that occurs when metals react with the surrounding environment. It involves the gradual deterioration and destruction of metals due to chemical or electrochemical reactions. While corrosion is generally considered detrimental, there are cases where it can be useful. In the case of the metals mentioned in the question (aluminium, silver, copper, and iron), corrosion is useful for aluminium specifically.

Corrosion of Aluminium
- Aluminium is a highly reactive metal that readily oxidizes when exposed to air.
- When aluminium corrodes, it forms a thin layer of aluminium oxide on its surface, creating a protective barrier.
- This layer of aluminium oxide prevents further corrosion by acting as a passive barrier against atmospheric oxygen, moisture, and other corrosive substances.
- Unlike iron, which corrodes extensively and rusts, aluminium's corrosion forms a protective layer that prevents further decay. This makes it useful in a variety of applications.

Usefulness of Aluminium Corrosion
- Enhanced Strength: The corrosion products of aluminium oxide adhere tightly to the metal's surface, increasing its strength and durability. This property is particularly useful in structural applications such as building construction and aerospace engineering.
- Self-healing: If the protective layer of aluminium oxide is scraped or damaged, it can quickly reform and heal itself in the presence of oxygen. This self-healing property further enhances the metal's corrosion resistance.
- Lightweight Construction: Aluminium's corrosion resistance allows for the creation of lightweight structures, making it a preferred choice in industries where weight reduction is crucial, such as the automotive and transportation sectors.
- Electrical Conductivity: Despite corrosion, aluminium maintains its excellent electrical conductivity. This property makes it suitable for electrical wiring and transmission lines.

Conclusion
In conclusion, among the metals mentioned, aluminium is the only one for which corrosion is useful. The formation of a protective layer of aluminium oxide during corrosion enhances its strength, enables self-healing, allows for lightweight construction, and maintains excellent electrical conductivity. This makes aluminium an invaluable material in various industries.

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Because after corresion it form a layer which resist further corresion of metal.

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Aluminum when corrode then it get a coated and form a layer which prevent it from further corrosion and it can't be corrode again

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