What is the correct order of decreasing stability of the
following cations?
⊕
I. CH₃ - CH - CH₃
⊕
II. CH₃ - CH - OCH₃
⊕
III. CH₃ - CH - CH₂ - OCH₃
(a) II > I > III (b) II > III > I
(c) III > I > II (d) I > II > III
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II > I > III is the trend of stability of the carbocations.
Explanation:
- Carbocations are the positively charged carbon atoms that are usually reaction intermediates and they are very short lived.
- The carboncation are itself not very stable, and don't usually form without any supporting effect.
- The carbocations are stabilised by the Resonance, inductive, hyper conjunction and different effects.
- In the 1st carbocation, this is stabilised by the weak inductive effects of the two methyl groups.
- In the 2nd carbocation, this is stabilised by the strong resonance of the methoxy group.
- In the 3rd carboncation, this is distabilised by the strong negative inductive effects of the methoxy group.
- So the stability trend is II > I > III.
For more information about carbocation,
https://brainly.in/question/7425761
what is carbocation ? - Brainly.in
https://brainly.in/question/8838752
the decreasing order of stability of following cations is
ethane carbocation
ethene carbocation
ethyne carbocation
ch3-c+≈o
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