MHT CET202313 May 2023Morning ShiftChemistryAminesActual
Identify the CORRECT decreasing order of basic strength of compounds from following.
Options
- ACH ₃ NH ₂> ( CH ₃ )₂ NH > C ₆ H ₅ NH ₂> NH ₃
- B( CH ₃ )₂ NH > CH ₃ NH ₂> NH ₃> C ₆ H ₅ NH ₂
- CNH ₃> CH ₃ NH ₂> ( CH ₃ )₂ NH > C ₆ H ₅ NH ₂
- DC ₆ H ₅ NH ₂> ( CH ₃ )₂ NH > CH ₃ NH ₂> NH ₃
Correct answer
B. ( CH ₃ )₂ NH > CH ₃ NH ₂> NH ₃> C ₆ H ₅ NH ₂
Step-by-step solution
Arylamines in general are weaker bases than ammonia and aliphatic amines. Aliphatic amines are stronger bases' than ammonia. Among aliphatic amines, 2^ amine is a stronger base than 1^ amine. Hence, the correct decreasing order of basic strength is: ( CH ₃ )₂ NH > CH ₃ NH ₂> NH ₃> C ₆ H ₅ NH ₂