Question

state two characteristics of the chemcial reaction which take place when dilute sulpuric acid is poured over zinc granules

Answer 1

2 characteristics of the chemical reaction are :-

• A gas is evolved which burns with a pop sound.
• A considerable amount of heat is evolved that is its an exothermic reaction.

Answer 2

Reaction of Sulphuric acid and Zinc:

H2SO4+Zn=======>ZnSO4 + H2

1.Hydrogen gas is evolved.

2.It is an example of Displacement reaction.

3.In this reaction, hydrogen is displaced by zinc from its solution.


4.The gas evolved burns with a pop sound.