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An electrochemical cell generally consists of a cathode and an anode. Which of the following statements is correct with respect to the cathode?(a) Oxidation occurs at the cathode(b) Electrons move into the cathode(c) Usually denoted by a negative sign(d) Is usually made up of insulating materialI had been asked this question in exam.I'd like to ask this question from Electrochemical Cells topic in portion Electrochemistry of Chemistry – Class 12

Answer» RIGHT choice is (B) Electrons move into the cathode

The best I can explain: Cathodes are USUALLY metal electrodes. It is the electrode where reduction takes place. The cathode is the POSITIVE electrode in a galvanic cell and a negative electrode in an electrolytic cell. Electrons move into the cathode.


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