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2 Chemistry -- Electrochemistry

How does electrochemical series help in comparing the relative oxidizing  and reducing strength of different element  predicting whether a metal displaces hydrogen gas from dilute mineral acid at normal temperature.

How does electrochemical series help in 


  1. comparing the relative oxidizing  and reducing strength of different element 

  2. predicting whether a metal displaces hydrogen gas from dilute mineral acid at normal temperature.

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