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Hydrocarbons — Chemistry STD 11 Science — Question

Gujarat BoardEnglish MediumSTD 11 ScienceChemistryHydrocarbons1 Mark
Question
Arrange the following alkenes in the decreasing order of stability.
  1. $\ \ \ \ \ \ \ \ \text{CH}_3\\ \ \ \ \ \ \ \ \ |\\\text{CH}_3\text{C}=\text{CHCH}_3$
  2. $ \ \ \ \ \ \ \ \ \text{CH}_3\\ \ \ \ \ \ \ \ \ \ |\\\text{CH}_3\text{CHCH}=\text{CH}_2$
  3. $ \ \ \ \ \ \ \ \ \ \ \ \ \ \text{CH}_3\\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ |\\\text{CH}_2=\text{CCH}_2\text{CH}_3$
✓

Answer

Stability of an alkene increases with increase in the number of electron donating substituent at the double bonded carbon atom. Thus, $\text{(i) > (iii) > (ii)}$.

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