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Which of the following metals cannot replace hydrogen from water or steam?

Chemistry
JAMB 1978

Which of the following metals cannot replace hydrogen from water or steam?

  • A. Sodium
  • B. Magnesium
  • C. Iron
  • D. Calcium
  • E. Copper
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Correct Answer: Option E
Explanation

Copper cannot replace hydrogen from water or steam because it is less reactive than hydrogen and therefore cannot displace it in a chemical reaction. 

Copper is located below hydrogen in the reactivity series, indicating that it is less reactive and cannot displace hydrogen. 


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