AIPMT PRELIMS2001Chemistry-Periodic Table
AIPMT PRELIMS 2001 Chemistry Ionization Potential MCQ Question
Type: MCQ-conceptual-Medium-Class 11
Correct order of IP among following elements Be, B, C, N, O is :-
A
B < Be < C < O < N
B
B < Be < C < N < O
C
Be < B < C < N < O
D
Be < B < C < O < N
Correct Answer
Option A
Detailed Explanation
The ionization potential generally increases across a period. However, Be has a higher IP than B due to its filled s subshell, and N has a higher IP than O due to half-filled p subshell stability.
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