QJEEM23Ch2f53: JEE Main 2023 Chemistry - Class 11 JEEM23Ch2f53 Solution: Given below are two statements: Statement I : Lithium and…
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 :
Multiple Choice Options
- A Statement I is incorrect but Statement II is correct
- B Both Statement I and Statement II are incorrect
- C Both Statement I and Statement II are correct
- D Statement I is correct but Statement II is incorrect
Step-by-Step Verified Solution
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.