KCET · Chemistry · Hydrogen
Hydrogen gas is not liberated when the following metal is added to dil \(\mathrm{HCl}\)
- A \(\mathrm{Ag}\)
- B \(\mathrm{Zn}\)
- C \(\mathrm{Mg}\)
- D \(\mathrm{Sn}\)
Answer & Solution
Correct Answer
(A) \(\mathrm{Ag}\)
Step-by-step Solution
Detailed explanation
The metals, present below hydrogen in the electrochemical series, cannot liberate hydrogen from the dilute acids.
Among the given metals only \(\mathrm{Ag}\) is present below hydrogen in electrochemical series, so it does not evolve hydrogen with dil HCl.
\[
\mathrm{Ag}+\text { dil } \mathrm{HCl} \longrightarrow \text { No reaction }
\]
Among the given metals only \(\mathrm{Ag}\) is present below hydrogen in electrochemical series, so it does not evolve hydrogen with dil HCl.
\[
\mathrm{Ag}+\text { dil } \mathrm{HCl} \longrightarrow \text { No reaction }
\]
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