NCERT Solution for Class Tenth Science Chapter 3
Metals and Non-metals
CBSE NCERT Book Session-2022-2023
Intext Questions
Page No-46
Questions No-4
Which gas is produced when dilute hydrochloric acid is added to a reactive metal? Write the chemical reaction when iron reacts with dilute H2SO4.
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When reactive metals react with dilute hydrochloric acids, gives a salt and hydrogen gas
Metal + Dilute acid → Salt + Hydrogen
Reaction between Iron and H₂SO₄
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Hydrochloric acid when added to a reactive metal like sodium, potassium etc.
Hydrogen gas is evolved.
When iron metal reacts with dilute H2SO4, iron sulphate is formed with the evolution of hydrogen gas.
When a reactive metal reacts with dilute hydrochloric acid, the gas produced is hydrogen. The general chemical equation for this type of reaction is:
Metal + 2HCl →Metal chloride+Hydrogen gas
Now, for the specific example of iron reacting with dilute sulfuric acid (H₂SO₄), the chemical equation is as follows:
Fe(s) + H₂SO₄(aq) → FeSO₄(aq) + H₂(g)
In this reaction, iron sulfate (FeSO₄) is formed along with the evolution of hydrogen gas.