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Why does magnesium ribbon produce bubbles while reacting with dilute acid?

Answer and explanation

Correct answer: Hydrogen gas is evolved

The governing concept is the displacement reaction between an active metal and a dilute acid. Magnesium is above hydrogen in the reactivity series, so it displaces hydrogen from the acid. The general reaction is magnesium + dilute hydrochloric acid → magnesium chloride + hydrogen, or Mg + 2HCl → MgCl2 + H2. The released hydrogen forms visible bubbles. Oxygen, nitrogen, and chlorine are not the expected products.

Related tags

MagnesiumAcid ReactionHydrogen GasAcidsBasesAnd SaltsAcids Bases And SaltsChemical Substances – Nature And BehaviourChemical Substances Nature And BehaviourScience

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