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QAIPMT-2008-Ch-2200: NEET 2008 Chemistry - Class 11 AIPMT-2008-Ch-2200 Solution: Four diatomic species are listed below. Identify the correct…
Four diatomic species are listed below. Identify the correct order in which the bond order is increasing in them
Multiple Choice Options
- A
- B
- C
- D
Step-by-Step Verified Solution
Molecular orbital configuration of NO (15 electrons) is
_ 1 s 2 _ 1 s 2 _ _ 2 s 2 _ 2 s 2 _ _ 2 p z 2 � 2 p x 2 = � 2 p y 2 � 2 p x 1 _ = � 2 p y o _
_ N b = 10
N a = 5
_ BO = 1 2 [ 10 _ 5 ] = 2.5
Molecular orbital configuration of O 2 _ (17 electrons) is
_ 1 s 2 _ 1 s 2 _ _ 2 s 2 _ 2 s 2 _ _ 2 p z 2 � 2 p x 2 = � 2 p y 2 � 2 p x 2 _ = � 2 p y 1 _
_ N b = 10
N a = 7
_ BO = 1 2 [ 10 _ 7 ] = 1.5
Molecular orbital configuration of C 2 2 _ (14 electrons) is
_ 1 s 2 _ 1 s 2 _ _ 2 s 2 _ 2 s 2 _ � 2 p x 2 = � 2 p y 2 _ 2 p z 2
_ N b = 10
N a = 4
_ BO = 1 2 [ 10 _ 4 ] = 3
Configuration of H e 2 + (3 electrons) is = _ 1 s 2 _ 1 s 1 _
_ Bond order = 1 2 (2 _ 1) = 0.5
_ Correct order is :
H e 2 + < O 2 _ < N O < C 2 2 _