Question

Iron is more reactive than copper. give an activity example​

Answer 1

To show that iron is more reactive than copper-

• At first prepare a solution of copper sulphate by dissolving copper sulphates crystals in water.

• We will get a blue colored solution.

• Now, keep an iron nail dipped in this solution.

• After sometime we will see that the colour of solution changes to dirty green and a reddish-brown powder sticks to the nail.

• Copper in copper sulphate is displaced by iron of the nail, and iron sulphate is formed which is green in colour.

• Thus, it shows that iron is more reactive than copper.

The reaction can be written as-

$\rm { Fe_{(iron)} + CuSO_{4(copper \: sulphate)} \longrightarrow FeSo_{4(iron \: sulphate)} + Cu }Fe(iron)+CuSO4(coppersulphate)⟶FeSo4(ironsulphate)+Cu$

Hope it helps!

Answer 2

Explanation:

iron is more reactive than copper, this can be proved by an activity.

material required for the activity: copper sulfate solutions, iron fillings or iron nail ,test tube.

procedure: take some copper sulfate solution(4-5ml) in a test tube . then immerse the iron fillings or the iron nail in this solution.. wait for some time until the reaction happens.

• observation : after some time it will be observed that the blue colour copper sulfhate solution turns pale green in colour.this is due to the displacement of copper sulfate to iron .the reaction that happens is a displacement reaction that is -
• Fe+CuSO4 -----→FeSO4+Cu
• hence,it proved that iron is more reactive than copper as it is able to displace copper in its aqueous salt solution.

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