Quantrex Quantrex AcademyJEE · NEET · NDA PYQs with solutions Open app
AP EAMCET202120 Aug 2021Morning ShiftChemistryGeneral Organic ChemistryActual

Which of the following is not explained by hyperconjugation?

Options

  1. Astability order of carbanions
  2. Bstability order of free radicals
  3. Cstability order of carbocations
  4. Dstability of alkenes

Correct answer

A. stability order of carbanions

Step-by-step solution

Hyper conjugation :- When a sigma C - H   bond of sp 3 hybridised carbon is in conjugation with π bond at p - orbital, half filled p - orbital or vacant p - orbital, then the bond pair e - of sigma C - H bond overlap with adjacent p - orbital. This phenomena is called hyperconjugation. Like resonance hyperconjugation is also a stabilising effect but the effect of resonance is more dominating than hyperconjugation, since in resonance only p - orbital e - overlap while in hyperconjugation σ - molecule

Practice General Organic Chemistry on Quantrex Academy →

More from General Organic Chemistry

Which of the following is an INCORRECT statement? 2026Identify the aromatic compounds among the given set based on Huckel's rule: 2026Among the given resonating structures of molecules negative mesomeric effect is represented by: 2026Identify the correct structure of o-ethyl anisole. 2026Match the mixtures listed in Column I with the correct method used for their separation. Column I Column II A. Glycerol from spent Lye P. Steam distillation B. Mixture of Benzoic a 2026Which one of the following is not the correct IUPAC name of the compound? 2026Lassaigne's test for the detection of nitrogen fails in 2026Consider the sets I, II and III. Identify the set(s) which is (are) correctly matched. I. Staggered ethane > eclipsed ethane ......... torsional strain. II. 2, 2-Dimethylbutane > 2 2025 Full General Organic Chemistry list All AP EAMCET PYQs