JEE MAIN - Chemistry (2025 - 24th January Evening Shift - No. 9)
Given below are two statements :
Statement (I) : The first ionization energy of Pb is greater than that of Sn .
Statement (II) : The first ionization energy of Ge is greater than that of Si .
In the light of the above statements, choose the correct answer from the options given below :
Statement I is false but Statement II is true
Both Statement I and Statement II are false
Both Statement I and Statement II are true
Statement I is true but Statement II is false
Explanation
Order of I.E. (in KJ/mol) :
$$\matrix{ C & > & {Si} & > & {Ge} & > & {Sn} & > & {Pb} \cr {1086} & {} & {786} & {} & {761} & {} & {708} & {} & {715} \cr }$$
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