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STD 12 - 2. Electrochemistry — NEET STD 11 Science — Question

Gujarat BoardEnglish MediumSTD 11 ScienceNEETSTD 12 - 2. Electrochemistry4 Marks
MCQ
Assertion : Copper sulphate solution is not stored in zinc vessel.

Reason : Zinc forms complex with $CuSO_4$

  • A
    If both Assertion and Reason are correct and the Reason is a correct explanation of the Assertion.
  • B
    If both Assertion and Reason are correct but Reason is not a correct explanation of the Assertion.
  • ✓
    If the Assertion is correct but Reason is incorrect.
  • D
    If both the Assertion and Reason are incorrect.
✓

Answer

Correct option: C.
If the Assertion is correct but Reason is incorrect.
c
Copper sulphate solution is not stored in zinc vessel as $Zn$ is more reactive than copper and has tendency to replace $Cu$ from its aqueous solution.

$Zn(s) + CuSO_4(aq) \to ZnSO_4(aq) + Cu(s)$

$ZN$ cannot form complex with $CuSO_4$ although $[Zn(H_2O)_4]SO_4$ exists in aqueous $ZnSO_4$ solution. Hence assertion is true but reason is false.

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