Electrochemical cell
Question
The metal that cannot displace hydrogen from dilute hydrochloric acid is
Easy
Solution
Electrodes having SRP values lesser than SRP of NHE can displace H2 from acid or water. or
Copper cannot displace hydrogen from the reaction with dilute hydrochloric acid. The reason is in electrochemical series copper is placed below the hydrogen. So, its electrode potential is less than the hydrogen.
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