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STD 11 -p-Block elements - I — NEET STD 11 Science — Question

Gujarat BoardEnglish MediumSTD 11 ScienceNEETSTD 11 -p-Block elements - I4 Marks
MCQ
Assertion : $PbI_4$ is a stable compound.

Reason : Iodide stabilizes higher oxidation state

  • 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.
  • C
    If the Assertion is correct but Reason is incorrect.
  • ✓
    If both the Assertion and Reason are incorrect.
✓

Answer

Correct option: D.
If both the Assertion and Reason are incorrect.
d
As we move down the group $IVA$, $+2$ oxidation state becomes more stable. Thus $Pb^{4+}$ is not possible, i.e., $PbI_4$ is highly unstable. $I_2$ is a weak oxidising agent so it cannot oxidise $Pb$ to $Pb^{4+}$ oxidation state. So assertion and reason both are wrong.

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