Chapter 3: Metals and Non-metals

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Q
Metals and Non-metals

Question:

Which gas is produced when dilute hydrochloric acid is added to a reactive metal? Write the chemical reaction when iron reacts with dilute H2SO4.

Answer:

When a metal reacts with dilute hydrochloric acid, the metal salt is formed along with the evolution of hydrogen gas.

Metal + Dilute acid ­→ Salt + Hydrogen gas

 

For example, when iron reacts with dilute sulphuric acid, ferrous sulphate is formed along with hydrogen gas.

Fe (s) + H2SO4 (aq) → FeSO4 (aq) + H2 (g)


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