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Question
What property of conc. \[\ce{H2SO4}\] is made use of the following case? Give an equation for the reaction on the same:
As a source of hydrogen by diluting it and adding a strip of magnesium.
Solution
Magnesium is present above hydrogen in the reactivity series, so sulphuric acid is able to liberate hydrogen gas by reacting with the magnesium strip.
\[\ce{Mg + H2SO4 -> MgSO4 + H2}\]
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