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JEE Main20199 Jan 2019Morning ShiftChemistryGeneral Organic ChemistryActual

Which amongst the following is the strongest acid?

Options

  1. ACH CN 3
  2. BCHI 3
  3. CCHBr 3
  4. DCHCl 3

Correct answer

A. CH CN 3

Step-by-step solution

Acidic character α stability of conjugate base (anion) Stability of anion α - M and – I - M > - I ( dominance ) Electron withdrawing groups increase acidic strength. Among the given compounds, the electron withdrawing strength of substituents In case of halogen - I > + M and - I order of halogen Cl > Br > I Hence, C H   C N 3 will be most acidic

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