Question

write two observations for the given chemical equations dilute sulphuric acid is poured over zinc granules

Answer 1

displacement reaction takes place

hydrogen gas is evolves

zinc sulphate is left as product

Answer 2

The zinc will react with sulphuric acid forming zinc sulphate dissolved in solution and releasing hydrogen gas.
Zn (s) + H2SO4 (aq) ---> ZnSO4 (aq)+ H2 (g)

When we take the test tube containing zinc and sulphuric acid near a candle or a burner, we hear a pop sound. This shows the presence of Hydrogen .

Also, if we take the the test tube near a litmus paper, the color remains same. This shows that hydrogen is neither acidic nor basic in nature. It is neutral in nature.


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