An electrochemical cell is shown below `Pt, H_(2)(1 "atm")|HCl(0.1 M)|CH_(3)COOH(0.1 M)|H_(2)(1 "atm")`, The emf of the cell will not be zero, becauseA. `pH` of `0.1 M HCl` and `0.1 M CH_(3)COOH` are not sameB. acids used in two compartments are differentC. the temperature is constantD. emf depends on molarities of acids used

An electrochemical cell is shown below `Pt, H_(2)(1 "atm")|HCl(0.1 M)|

1.	An electrochemical cell is shown below `Pt, H_(2)(1 "atm")\|HCl(0.1 M)\|CH_(3)COOH(0.1 M)\|H_(2)(1 "atm")`, The emf of the cell will not be zero, becauseA. `pH` of `0.1 M HCl` and `0.1 M CH_(3)COOH` are not sameB. acids used in two compartments are differentC. the temperature is constantD. emf depends on molarities of acids used
Answer» Correct Answer - A It is a kind of concentration cell. The concentration of `H^(+)` ions in two half cell is different because `HCl` is a strong electrolyte while `CH_(3)COOH` is a weak electrolyte.

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What are elementary reactions ?

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