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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:

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.


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