Which of the following gases get released when dilute sulphuric acid (H2SO4) reacts with magnesium (Mg)?
Show answer & explanation
Correct answer: D
Explanation
The correct answer is option 4 i.e. H2.
When dilute sulphuric acid (H2SO4) reacts with magnesium (Mg), hydrogen gas (H2) is released.
This is a typical acid-metal reaction where magnesium displaces hydrogen from the acid, forming magnesium sulfate (MgSO4) and hydrogen gas as products.
Chemical equation: Mg + H2SO4 -> MgSO4 + H2