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MHT CET20228 Aug 2022Evening ShiftChemistryAminesActual

Which among the following molecules has lowest p ^ Kb value?

Options

  1. ACH ₃ CH ₂ NH ₂
  2. B( CH ₃ CH ₂ )₃ ~N
  3. C( CH ₃ CH ₂ )₂ NH
  4. DCH ₃ NH ₂

Correct answer

C. ( CH ₃ CH ₂ )₂ NH

Step-by-step solution

aligned & CH ₃ NH ₂ < C ₂ H ₅ NH ₂ < ( CH ₃ CH ₂ )₃ ~N < ( C ₂ H ₅ )₂ NH & pK _ b =3.34 ; pK _ b =3.29 ; pK _ b =3.24 ; pK _ b =3.0 aligned

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