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\(Cu\) and \(HNO_{3}\) are not suitable for preparing hydrogen gas because of their

Chemistry
WAEC 2018

\(Cu\) and \(HNO_{3}\) 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
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Correct Answer: Option A
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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WAEC offline past questions - with all answers and explanations in one app - Download for free
Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts
WAEC May/June 2024 - Practice for Objective & Theory - From 1988 till date, download app now - 99995
WAEC Past Questions, Objective & Theory, Study 100% offline, Download app now - 24709
WAEC Past Questions, Objective & Theory, Study 100% offline, Download app now - 24709
Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts
WAEC May/June 2024 - Practice for Objective & Theory - From 1988 till date, download app now - 99995
WAEC offline past questions - with all answers and explanations in one app - Download for free