When an iron nail is placed into a solution of copper sulfate?

Question

no reaction occurs
iron (II) chloride is formed
iron copper sulfate is formed
the iron replaces the copper

Answer 1

Fe (nail) + CuSO4 --> FeSO4 + Cu

it stands to reason that the iron replaces the copper. There definitely is a reaction; there is no chloride, so iron CHLORIDE cannot form. There is no reason to think that iron copper sulfate is formed.

Answer 2

The solution of copper sulphate put into an iron pot will cause damage to the pot. This is carried out by a reaction called a redox reaction. To analyze this one must first understand why the pots should get damaged. The pot will get damaged if the metal making up the pot reacts with the solution placed in it. In other words the metal molecules in the pot should form cations(+ve ions) If ions are formed then the ions will escape from the metal pot and hence weaken and damage the pot. If the metal is losing electrons to form cations then it must be oxidized in our case of the iron pot the iron must lose 2 electrons to form iron with +2 charge but at the same time then copper ions in copper sulphate should except the ions to form copper metal which happens in case of copper-iron pair but not in the case of magnesium-copper or magnesium-iron this is because for any element to reduce the other it must be higher in a chemical table called standard reduction potential table among the options only in the pair of copper-iron we find that the solutions metallic ion is at a lower reduction potential then the pot In general whenver storing a soluton in a container the container should be of a material having a higher reduction potential then the solution This can also be explained in terms of reactivity series where in the series is K potassium Na sodium Ca calcium Mg magnesium Al aluminium Zn zinc Fe Iron Sn Tin Pb Lead H2 Hydrogen Cu Copper Ag Silver Hg Mercury Au Gold Pt Platinum Reactivity of metals decreases down the table A higher metal can displace a lower metal from its solution in other words reaction will occur on the other hand for a lower metal it is almost impossible to displace a higher metal without some external aid like heat or a catalyst one way or another the principle is the same that of a redox reaction where in ur case the copper is getting reduced and the iron is getting oxidized

Answer 3

In the reactivity series Iron is placed aboce copper.It is the chemical property of metal that when a more reactive metal is placed in the salt solution of a less reactive metal it replaces the less reactive metal so iron will replace copper.

Fe + CuSO4-------Cu + FeSO4

On the other hand if we see the RHS of the equation their would be no reaction because Cu is less reactive than Fe.

Cu + FeSO4------No Reaction

Answer 4

theiron replaces the copper in solution and copper precipitates