Question

${PbI4}$ is a stable compound. 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
• D. If both the Assertion and Reason are incorrect

Answer 1

Answer: (D)

If both the Assertion and Reason are incorrect

Answer 2

Due to screening effect, down the group, lower oxidation states become more stable. e.g., $Pb(II)$ is more stable than $Pb(IV)$. But small, highly electronegative elements like $F$ atoms can somewhat stabilise its higher oxidation state.