MEDIUMMCQ SINGLEIChO (Chemistry Olympiad)Physical ChemistryElectrochemistryGeneral

Which one of the following statements is incorrect regarding an electrochemical cell?

A.The electrode on which oxidation takes place is called
B.Anode is a negative pole
C.The direction of current is same as that of flow of✓ Correct
D.The flow of current is partly due to the flow of
Explanation

There are two types of cells- (i)Galvanic Cell- These are the cells in which potential difference is created when a chemical reaction occurs. (ii)Electrochemical or Electrolytic cell- These are the cells in which potential difference is used for the chemical reaction to occur. In the electrochemical cell, the anode is charged negatively and the cathode is charged positively which is the reverse of the galvanic cell. Thus, the direction of flow of current is from anode to cathode and hence the electron flow is from cathode to anode. Thus, the correct option is (c) the direction of the current i

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