Question

Draw the reaction of zinc granules with dilute sulphuric acid and testing hydrogen gas by burning

Answer 1

Answer :

Zn + H2SO4 ———> ZnSO4 + H2

Explanation :

When zinc is added in dilute sulphuric acid, then bubbles of hydrogen gas are produced. So, the chemical reaction between zinc and dilute suphuric acid is characterised by the evolution of gas.

We can perform this chemical reaction in lobaratory as follows :

1. Take some zinc granules in a conical flask or in a test tube.
2. Add dilute sulphuric acid over zinc granules.
3. We will see the bubbles of hydrogen gas being formed around zinc granules.
4. If we touch the conical flask with our hand, we will observe that it is somewhat hot which is a change in temperature.
5. Bring a burning candle near a conical flask. The gas present in conical flask burns with a pop' sound making a little explosion.

Thanks

Answer 2

see the attached files clearly dear mate!!!!