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STD 12 - 9. Amines — NEET STD 11 Science — Question

Gujarat BoardEnglish MediumSTD 11 ScienceNEETSTD 12 - 9. Amines4 Marks
MCQ
The order of basic strength among the following amines in benzene solution is
  • A
    $C{H_3}N{H_2} > {(C{H_3})_3}N > {(C{H_3})_2}NH$
  • ✓
    ${(C{H_3})_2}NH > C{H_3}N{H_2} > {(C{H_3})_3}N$
  • C
    $C{H_3}N{H_2} > {(C{H_3})_2}NH > {(C{H_3})_3}N$
  • D
    ${(C{H_3})_3}N > C{H_3}N{H_2} > {(C{H_3})_2}NH$
✓

Answer

Correct option: B.
${(C{H_3})_2}NH > C{H_3}N{H_2} > {(C{H_3})_3}N$
b
(b)$\mathop {}\limits_{{K_b} = } \mathop {{{(C{H_3})}_2}NH}\limits_{5.4 \times {{10}^{ - 4}}} > \mathop {C{H_3}N{H_2}}\limits_{4.5 \times {{10}^{ - 4}}} > \mathop {{{(C{H_3})}_3}N}\limits_{0.6 \times {{10}^{ - 4}}} $

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