Simple chemical cells involve two electrodes. Which of the following statements is correct?Both electrodes must be carbonThe electrodes must be the same metalOne electrode must be carbonThe electrodes must be two different metals
Question
Simple chemical cells involve two electrodes. Which of the following statements is correct?Both electrodes must be carbonThe electrodes must be the same metalOne electrode must be carbonThe electrodes must be two different metals
Solution
The correct statement is: The electrodes must be two different metals.
In a simple chemical cell, the two electrodes are typically made of different metals. This is because the reaction in a chemical cell involves the transfer of electrons from one electrode (the anode) to another (the cathode). This transfer of electrons is facilitated by the difference in reactivity between the two metals. If the electrodes were made of the same metal, there would be no potential difference between them, and no current would flow.
Similar Questions
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