Identify the incorrect statement about electrochemical series:
Correct answer: C. Oxidizing power of an element decreases from top to bottom
- A. Every top metal acts as anode
- B. Every lower metal acts as cathode
- C. Oxidizing power of an element decreases from top to bottom
- D. Reducing power of an element decreases from top to bottom
Explanation
The correct answer is Option C: 'Oxidizing power of an element decreases from top to bottom.' This statement is incorrect because, in the electrochemical series, the oxidizing power of an element actually increases from top to bottom as the reduction potential becomes more positive.Option A is incorrect because metals at the top are indeed more likely to act as anodes. Option B is incorrect because metals at the bottom are more likely to act as cathodes. Option D is incorrect because the reducing power increases from top to bottom as elements become less likely to donate electrons.
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Electrochemistry describes electron transfer through oxidation and reduction, identifies oxidizing and reducing agents, and applies oxidation numbers to balance redox equations. It also covers electrode potential and the standard hydrogen electrode, which provides the reference for comparing the reduction tendencies of other electrodes.
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