Which of the following metals reacts reversibly with steam?

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Aluminium

Copper

Lead

Iron

answer is D.

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Detailed Solution

Concept- With the aid of some concrete examples, we will first comprehend what is meant by the phrase "reversible reactions" in order to answer the presented problem. We'll observe the metal's reversible response to steam in more detail. We will choose the best choice based on the chemical reaction and our knowledge of the characteristics of the specified metals.
Let's first define what a reversible reaction is.
A reversible reaction is a sort of reaction in which the reactant is converted into the product. The products may also react with one another to return the reactants.
Let chemical X and compound Y, for instance, react to form products A and B. However, a reaction in which we may revert to our starting compounds, X and Y, after reacting chemical A with compound B is said to as reversible.
One illustration of a reversible process is the conversion of hydrogen gas and iodine vapour to hydrogen iodide.
Let's now examine the solution portion and how each of the alternatives will interact with the water and steam.
Copper and lead do not interact with either water or steam among the possibilities provided.
Additionally, sulphur does not react with water.
Water and potassium react, but these reactions are irreversible.
Steam and aluminium react, but the process is irreversible.
Normal water does not cause a reaction with iron, only steam water does. The response can also be reversed.
Metal oxide and hydrogen gas are produced during the interaction between iron metal and steam water. This response can also be reversed.
The chemical reaction is as follows:

Hence, Iron metal reacts reversibly with steam.
Hence, the correct option is

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