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Question
Which of the following is/are correct regarding the stability of the following pair of species?
Which of the following is/are correct regarding the stability of the following pair of species?
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Solution
The correct options are
A CH2=+N=¯N>¯CH2−+N≡N
B CH2=CH−+CH−¯O>¯CH2−CH=CH−+O
C CH3−O||C−¯O>CH3−CH2−¯O
(A) CH2=+N=−N>−CH2−+N≡N
Negative charge on more electronegative element is more stable.(B) CH2=CH−+CH−−O>−CH2−CH=CH−+OCharge separation between unlike charges should be less. O(C) CH3−||C−⊝O(I)>CH3−CH2−⊝O(II)Negative charge stabilized by resonating in (I)(Refer to Image)(D) H3C−HC=CH−CH2−CH3<CH3−C|=CH−CH3 pent−2−ene CH3 2−methyl−but−2−ene
A CH2=+N=¯N>¯CH2−+N≡N
B CH2=CH−+CH−¯O>¯CH2−CH=CH−+O
C CH3−O||C−¯O>CH3−CH2−¯O
(A) CH2=+N=−N>−CH2−+N≡N
Negative charge on more electronegative element is more stable.
(B) CH2=CH−+CH−−O>−CH2−CH=CH−+O
Charge separation between unlike charges should be less.
O
(C) CH3−||C−⊝O(I)>CH3−CH2−⊝O(II)
Negative charge stabilized by resonating in (I)
(Refer to Image)
(D) H3C−HC=CH−CH2−CH3<CH3−C|=CH−CH3
pent−2−ene CH3
2−methyl−but−2−ene
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