CHEMISTRY
JAMB 2006 - Question 42
Chemistry 2006 JAMB Past Questions - Question 42: Trioxonitrate(V) acid is not used for preparing hydrogen gas from metals because it
Choose the correct answers from the options given.
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Correct Answer
A
Explanation
Trioxonitrate(V) acid, also known as nitric acid (HNO3), is not used for preparing hydrogen gas from metals because it is a strongly oxidizing agent. Nitric acid has a strong tendency to oxidize substances, including metals. When reacting with metals, it tends to oxidize the metal rather than producing hydrogen gas. The oxidation of the metal results in the formation of metal oxides or nitrate compounds rather than the evolution of hydrogen gas.
In contrast, less oxidizing acids like hydrochloric acid (HCl) or sulfuric acid (H2SO4) are commonly used for the preparation of hydrogen gas from metals, as they promote the reduction of metal ions to produce hydrogen gas.
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