JEE Main 2023 — S Block Elements Question with Solution
From: JEE Main 2023 (Online) 8th April Morning Shift
Question
Given below are two statements:
Statement I : Lithium and Magnesium do not form superoxide
Statement II : The ionic radius of is larger than ionic radius of
In the light of the above statements, choose the most appropriate answer from the options given below :
Choose an option
Show full solutionCorrect option: C
Step-by-step explanation
Statement I : "Lithium and Magnesium do not form superoxide"
This statement is correct. Lithium and magnesium are smaller in size compared to other elements in their respective groups. Although lithium can form superoxide under certain conditions, in general, the smaller size of these two elements makes it harder for them to form stable superoxides.
Statement II : "The ionic radius of Li+ is larger than the ionic radius of Mg2+"
This statement is still correct. Despite both lithium and magnesium being small in size, when they lose electrons to form ions, the Mg2+ ion is smaller than the Li+ ion due to the loss of two electrons (and thus an energy level) in magnesium compared to the loss of one electron in lithium.
So, based on the information, the answer is :
Option C : Both Statement I and Statement II are correct.
Practice this on the real CBT interface
Solve this JEE Main question (and the rest of the S Block Elements chapter) on PrepSharp's TCS iON-style CBT player — with timer, bookmarks and session analytics.
Solve interactively →About this question
This is a previous-year question from JEE Main 2023, covering the S Block Elements chapter of Chemistry. PrepSharp catalogues every PYQ from JEE Main with a verified answer key and step-by-step solution prepared by IIT alumni — so you can search by chapter, topic or year and revise efficiently.