Single correct option
Which of the following metals does not liberate hydrogen from dilute hydrochloric acid?
- A. Copper
- B. Zinc
- C. Magnesium
- D. Iron
Show answer and solution
Answer: (A) Copper
Only metals above hydrogen in the reactivity series displace hydrogen from dilute acids. Zinc, magnesium and iron are above hydrogen, while copper lies below it and shows no reaction with dilute hydrochloric acid.
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