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The increasing order of basicity for the following intermediates is (from weak to strong)
ChemistryGeneral Organic ChemistryJEE MainJEE Main 2020 (09 Jan Shift 1)
Options:
  • A iii<i<ii<iv<v
  • B v<i<iv<ii<iii
  • C v<iii<ii<iv<i
  • D iii<iv<ii<i<v
Solution:
1939 Upvotes Verified Answer
The correct answer is: v<iii<ii<iv<i

Basicity is inversely proportional to electronegativity.

Higher the electron affinity or core charge of an atom, the less likely it is to donate its electrons to a proton.
Greater the delocalization of electrons that could potentially donate to a proton, the less able they are to donate.
Greater the electron-withdrawing effects in another part of a molecule, the less likely the electrons on a particular atom are to donate.

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