Cu and HNO 3 are not suitable for preparing hydrogen gas because of their
CHEMISTRY
WAEC 2018
Cu and HNO3 are not suitable for preparing hydrogen gas because of their
- A. reactivity and oxidation respectively
- B. conductivity and corrosiveness respectively
- C. melting point and reduction respectively
- D. electronegativity and solubility respectively
Correct Answer: A. reactivity and oxidation respectively
Explanation
Copper is not active enough to replace hydrogen in an acid. Also, nitric acid is a strong oxidizing agent which quickly oxidises hygrogen to water.
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