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Question

What happens when dilute sulfuric acid is poured on zinc granules?


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Solution

Reaction of dilute sulfuric acid with zinc granules

  • When dilute sulfuric acid H2SO4 is poured on zinc Zn granules, the zinc displaces hydrogen from the acid, forming zinc sulfate ZnSO4 and hydrogen H2 gas.
  • Zinc displaces hydrogen during the reaction because it is more reactive than hydrogen.
  • Hydrogen is a flammable gas that produces a popping sound when burned.

Balanced chemical reaction

  • The reaction is as follows:

ZnsZinc+H2SO4aqSulfuricacidZnSO4aqZincsulfate+H2gHydrogen


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