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Saturday, 31 October

JEE Main 2024 · ChemistryMultiple choiceSingle correctEasyConceptual

JEE Main 4 April 2024, Shift 1, Chemistry Q63

Question 63 of 90 in this shift, Chemistry question 3 of 30, Section A.

What will be the decreasing order of basic strength of the following conjugate bases ? O‾H\overline{\mathrm{O}}\mathrm{H}, RO‾\mathrm{R}\overline{\mathrm{O}}, CH3COO‾\mathrm{CH_3CO}\overline{\mathrm{O}}, Clˉ\mathrm{C}\bar{\mathrm{l}}
  1. (1)O‾H>RO‾>CH3COO‾>Clˉ\overline{\mathrm{O}}\mathrm{H} > \mathrm{R}\overline{\mathrm{O}} > \mathrm{CH_3CO}\overline{\mathrm{O}} > \mathrm{C}\bar{\mathrm{l}}
  2. (2)RO‾>O‾H>CH3COO‾>Clˉ\mathrm{R}\overline{\mathrm{O}} > \overline{\mathrm{O}}\mathrm{H} > \mathrm{CH_3CO}\overline{\mathrm{O}} > \mathrm{C}\bar{\mathrm{l}}Official answer
  3. (3)Clˉ>O‾H>RO‾>CH3COO‾\mathrm{C}\bar{\mathrm{l}} > \overline{\mathrm{O}}\mathrm{H} > \mathrm{R}\overline{\mathrm{O}} > \mathrm{CH_3CO}\overline{\mathrm{O}}
  4. (4)Clˉ>RO‾>O‾H>CH3COO‾\mathrm{C}\bar{\mathrm{l}} > \mathrm{R}\overline{\mathrm{O}} > \overline{\mathrm{O}}\mathrm{H} > \mathrm{CH_3CO}\overline{\mathrm{O}}

Official answer

Option 2

NTA final key.