Question:
Which of the following has least tendency to liberate H$_2$ from mineral acids?
Which of the following has least tendency to liberate H$_2$ from mineral acids?
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Metals below hydrogen in the reactivity series do not react with acids to produce H$_2$ gas.
Updated On: Mar 24, 2025
- Cu
- Mn
- Ni
- Zn
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The Correct Option is A
Solution and Explanation
Step 1: Understanding Reactivity Series
The tendency of a metal to liberate hydrogen from acids depends on its position in the electrochemical series.
More electropositive metals react with acids to release H$_2$ gas.
Step 2: Analyzing the Given Metals
Zn and Mn are highly reactive and readily react with acids.
Ni has moderate reactivity.
Cu lies below hydrogen in the reactivity series, meaning it does not react with acids to liberate H$_2$.
Final Answer: Copper (Cu) has the least tendency to liberate H$_2$ from acids.
The tendency of a metal to liberate hydrogen from acids depends on its position in the electrochemical series.
More electropositive metals react with acids to release H$_2$ gas.
Step 2: Analyzing the Given Metals
Zn and Mn are highly reactive and readily react with acids.
Ni has moderate reactivity.
Cu lies below hydrogen in the reactivity series, meaning it does not react with acids to liberate H$_2$.
Final Answer: Copper (Cu) has the least tendency to liberate H$_2$ from acids.
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