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The standard electrode potentials of fou...

The standard electrode potentials of four elements A,B,C,D are - 3.05,- 1.66,-0.40 and 0.80 volts respectively. The highest chemical activity will be shown by:

A

A

B

B

C

C

D

D

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To determine which element among A, B, C, and D exhibits the highest chemical activity based on their standard electrode potentials, we can follow these steps: ### Step 1: Understand Standard Electrode Potential The standard electrode potential (E°) indicates the tendency of a species to be reduced. A more negative E° value means a greater tendency to lose electrons (higher activity as a reducing agent). ### Step 2: List the Given Electrode Potentials The standard electrode potentials for the elements are: - A: -3.05 V - B: -1.66 V - C: -0.40 V - D: 0.80 V ### Step 3: Identify the Most Negative Value To find the highest chemical activity, we look for the most negative standard electrode potential since it indicates a stronger reducing agent: - A: -3.05 V (most negative) - B: -1.66 V - C: -0.40 V - D: 0.80 V (most positive) ### Step 4: Consider the Chemical Activity Chemical activity is often assessed by the absolute value of the electrode potential. Therefore, we can consider the absolute values: - |A| = 3.05 - |B| = 1.66 - |C| = 0.40 - |D| = 0.80 ### Step 5: Conclusion The element with the highest absolute value of the standard electrode potential is A (-3.05 V). This indicates that A has the highest chemical activity among the four elements. ### Final Answer The highest chemical activity will be shown by element A. ---
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