Practicing Success
Statement I: Zinc displaces copper from copper sulphate solution Statement II: The E° value of zinc is –0.76 V and that of copper is +0.34 |
Both Statement I and Statement II are correct and Statement II is the correct explanation of Statement I Both Statement I and Statement II are correct and Statement II is not a correct explanation of Statement I Statement I is correct but Statement II is false Statement I is false but Statement II is correct |
Both Statement I and Statement II are correct and Statement II is the correct explanation of Statement I |
The correct answer is 1. Both Statement I and Statement II are correct, and Statement II is the correct explanation of Statement I. The explanation (Statement II) is that because zinc has a more negative E° value than copper, it has a higher tendency to undergo reduction. Hence, when zinc is added to copper sulfate solution, it displaces copper ions, and solid copper is deposited, as explained in Statement I. In conclusion, both statements are correct, and Statement II provides the correct explanation for why zinc displaces copper from copper sulfate solution. The correct answer is 1. |