Magnesium metal reacts with dilute sulphuric acid to produce magnesium sulphate solution and hydrogen gas. Identify the type of chemical reaction represented by this process.

Step-by-step solution

1. Write the unbalanced equation: $\mathrm{Mg}+{\mathrm{H}}_2\mathrm{S}{\mathrm{O}}_4\to \mathrm{MgS}{\mathrm{O}}_4+{\mathrm{H}}_2$.
2. Observe that magnesium metal replaces hydrogen from the acid.
3. Since a metal displaces another element (hydrogen) from its compound, the reaction is a single displacement or replacement reaction.
4. Thus the correct classification is a single displacement (replacement) reaction.

Concept tested: Classification of reaction type

Published 22 August 2026 · How this solution was prepared and checked

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