General Science • ChemistryEasy
Which metal does not react with dilute hydrochloric acid to liberate hydrogen gas?
A. Zinc
B. Iron
C. Copper✓ Correct Answer
D. Magnesium
💡 Solution & Explanation
Copper sits below hydrogen in the electrochemical reactivity series, meaning it cannot displace hydrogen ions from dilute hydrochloric acid to release hydrogen gas. More reactive metals like zinc, iron, and magnesium readily undergo this displacement reaction.
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