Question

- What information does the following chemical equations convey ?
(a) Zn + H2SO4→ ZnSO4+H2
(b) Mg + 2HCl → MgCl2+H2​

Answer 1

Answer:

The first equation conveys that Zinc metal reacts with Sulphuric acid to give rise to Zinc Sulphate and Hydrogen gas. In this reaction, zinc being a more reactive metal displaces Hydrogen from its sulphate solution. So this a displacement reaction. The second equation should be Mg+2HCl - MgCl2+ H2.

Explanation:

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Answer 2

*************Answer***************

When metals reacts with acid, there is formation of metal salt & evolution of hydrogen gas.

Metal + Dilute Acid ------> Metal Salt + H2 Gas