Question

a more reactive metal displaces a less reactive metal from its salt solution.using this concept describe an experiment to show that among the metals, zinc,iron and copper,zinc is the most reactive metal whereas copper is the least reactive metal

Answer 1

Answer:

more reactive metal is zinc and least reactive is copper

Answer 2

Experiment to explain Zinc is more reactive and Copper is least reactive:

An experiment to describe the concept of reactive metal replacing the less reactive metal is known as metal displacement reaction experiment.

To find if zinc is more reactive than copper amongst the metal given that are zinc, iron, copper we follow the experiment as follows.

Step 1: First we take a piece of zinc and drop in beaker A and beaker B.

Step 2: Beaker A contains a copper solution of $CuSO_{4}$ and Beaker B contains an iron solution of $FeSO_{4}$.

Step 3: After dropping the zinc in both the beakers note the time taken for zinc to react completely.

The observation shows that time taken by zinc to replace copper is quicker than time taken by iron, proving that zinc reacts and displaces copper faster than iron.

So the order of reactivity is   Zinc > Iron > Copper

Therefore, it shows that zinc is far more reactive than copper.