Question:

$ {PbI4}$ is a stable compound. Iodide stabilizes higher oxidation state

Updated On: Jul 28, 2022
  • If both Assertion and Reason are correct and the Reason is a correct explanation of the Assertion.
  • 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
  • If both the Assertion and Reason are incorrect
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The Correct Option is D

Solution and Explanation

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.
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Concepts Used:

P-Block Elements

  • P block elements are those in which the last electron enters any of the three p-orbitals of their respective shells. Since a p-subshell has three degenerate p-orbitals each of which can accommodate two electrons, therefore in all there are six groups of p-block elements.
  • P block elements are shiny and usually a good conductor of electricity and heat as they have a tendency to lose an electron. You will find some amazing properties of elements in a P-block element like gallium. It’s a metal that can melt in the palm of your hand. Silicon is also one of the most important metalloids of the p-block group as it is an important component of glass.

P block elements consist of: