Chemistry, asked by navneetmarwaha55, 9 months ago

in order to study the relative activity of copper, silver, aluminium and iron and their salts copper sulphate, Aluminium Sulphate,ferric sulphate and silver nitrate were taken. the salts were dissolved in water separately in four beakers, small amounts of these solutions were taken in four test tubes and a strip of copper was dipped in each of these four test tubes. same was repeated for silver in another set of four test tubes,and likewise with aluminium and iron strips. Now tell that which of the following reaction will take place? (a)silver in copper sulphate solution (b)copper in ferric sulphate solution (c)iron in aluminium sulphate solution (d) iron in copper sulphate solution

Answers

Answered by abhinavmishra2006

Answer: plz mark me as brainliest

Explanation:

Aim:

Observing the action of zinc, iron, copper and aluminium metals for the following salt solutions.

Zinc sulphate (ZnSO4)

Copper sulphate (CuSO4)

Ferrous sulphate (FeSO4)

Aluminium sulphate (Al2(SO4)3)

Arranging the metals Zinc, Copper, Iron, and Aluminium in the decreasing order of reactivity based on the results obtained from the above.

Materials required:

Aluminium foil

Zinc granules

Copper turnings

Iron filings

Copper sulphate solution

Aluminium sulphate solution

Zinc sulphate solution

Four 50ml beakers

Test tube

Test tube stand

Theory:

What is reactivity series?

Different metals have different reactivities with chemical reagents. The metals that form positive ions by losing electrons more readily. A more reactive metal displaces a less reactive metal from salt solution. Such reactions are called displacement reactions. Consider an example, if a small amount of zinc is dipped in copper sulphate solution, zinc is displaced from copper sulphate. The blue colour of copper sulphate fades and colourless zinc sulphate solution is obtained. Therefore zinc is more reactive than copper.

Aluminium has the ability to displace zinc, iron, copper from their respective salt solutions and therefore is more reactive than them.

Reactions:

2Al(s) + 3ZnSO4(aq) –→ Al2(SO4)3 3Zn(s)

2Al(s) + 3FeSO4(aq) –→ Al2(SO4)3 3Fe(s)

2Al(s) + 3CuSO4(aq) –→ Al2(SO4)3 3Cu(s)

Zinc has the ability to displace iron, copper from their respective salt solutions and therefore is more reactive than them.

Reactions:

Zn(s) + CuSO4(aq) –→ ZnSO4 (aq) + Cu(s)

Zn(s) + FeSO4(aq) –→ ZnSO4 (aq) + Fe(s)

Zn(s) + Al2(SO4)3(aq) –→ no reaction

Zn(s) + ZnSO4(aq) –→ no reaction

Iron has the ability to displace copper from its salt solution and therefore is more reactive when compared to Cu.