Question

Write the chemical equation of the reaction which takes place when iron reacts with dilute sulphuric acid. What happens when the gas produced is ignited with a burning matchstick?

Answer 1

\[\ce{\underset{Iron}{Fe_{(s)}} + \underset{Sulphuric acid}{H2SO4_{{(aq)}}} -> \underset{Iron (II) sulphate}{FeSO4_{(aq)}} + \underset{Hydrogen}{H2_{(g)}}}\]

When the hydrogen gas produced is ignited with a matchstick, it burns with a pop and causes a small explosion.