Why does not copper displace hydrogen on reaction with dilute sulphuric acid?

Question

Accepted Answer

Opper only reacts with concentrated acids as far a I know because of its position in the reactivity series. No, HCl acid does not react with copper. ... So it is not possible for copper to displace hydrogen from sulphuric acid to form copper sulphate and hydrogen gas. So copper will not react with dilute sulphuric acid.

Answer

Because copper is less reactive than hydrogen.

Answer

Copper is less reactive than hydrogen

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Copper doesn't displaces hydrogen because copper is less reactive than hydrogen .

I hope it helps!!

Answer

According to reactive series of metal.copper is less reactive than hydrogen so copper cannot replace hydrogen from sulphuric acid

Answer

Copper is less reactive than hydrogen

Answer

Because Copper is less reactive than Hydrogen..so,no reaction will take place...

Answer

Copper does not displace hydrogen copper is more reactive than hydrogen

Answer

Bcz copper is less reactive than hydrogen

Answer

Introduction: Copper is a transition metal that is widely used in various industries due to its excellent electrical and thermal conductivity. When copper is reacted with dilute sulphuric acid, it does not displace hydrogen. This can be explained by several factors.

Reactivity series: The reactivity series is a list of metals arranged in order of their reactivity towards displacement reactions. Copper is placed below hydrogen in the reactivity series, indicating that it is less reactive than hydrogen. Therefore, copper cannot displace hydrogen from dilute sulphuric acid.

Formation of a protective layer: When copper reacts with sulphuric acid, it undergoes a redox reaction where copper is oxidized while hydrogen is reduced. However, copper forms a layer of copper(II) sulphate on its surface, which acts as a protective barrier. This layer prevents further reaction between copper and sulphuric acid, thus inhibiting the displacement of hydrogen.

Passivation: Passivation is a process in which a metal surface becomes inactive or less reactive due to the formation of a thin oxide layer. Copper undergoes passivation when exposed to air or certain chemicals, including sulphuric acid. The passivation layer on copper prevents the metal from reacting further with the acid, including the displacement of hydrogen.

Equilibrium of the reaction: The reaction between copper and dilute sulphuric acid reaches an equilibrium state, where the forward and backward reactions occur at the same rate. This equilibrium state is achieved when the concentration of copper ions in the solution is relatively low. As a result, the reaction does not proceed to displace hydrogen.

Conclusion: In summary, copper does not displace hydrogen on reaction with dilute sulphuric acid due to its position in the reactivity series, the formation of a protective layer of copper(II) sulphate, passivation of the copper surface, and the equilibrium of the reaction. These factors collectively inhibit the displacement of hydrogen and contribute to the lack of reactivity between copper and dilute sulphuric acid.

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