What is the observed result of the reaction between copper and sulfuric acid?

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Prepare for the IGCSE Edexcel Chemistry Test with engaging flashcards and multiple-choice questions. Each question comes with detailed hints and explanations to enhance your learning experience. Master your exam with confidence!

Multiple Choice

What is the observed result of the reaction between copper and sulfuric acid?

Explanation:
Metals can displace hydrogen from acids only if the metal is more reactive than hydrogen. Copper is less reactive than hydrogen, so it cannot reduce the hydrogen ions from sulfuric acid. With dilute sulfuric acid, this means no reaction occurs—no hydrogen gas evolves and no copper salt forms under typical conditions. (Using hot, concentrated sulfuric acid changes things, but that’s a different scenario.)

Metals can displace hydrogen from acids only if the metal is more reactive than hydrogen. Copper is less reactive than hydrogen, so it cannot reduce the hydrogen ions from sulfuric acid. With dilute sulfuric acid, this means no reaction occurs—no hydrogen gas evolves and no copper salt forms under typical conditions. (Using hot, concentrated sulfuric acid changes things, but that’s a different scenario.)

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