
Grade 12th passOrganic Chemistry
Question 13: Place the isomeric compounds ethylenediamine(A), n-butylamine (B) and diethylamine(C) in order of decreasing boiling points and give an explanation.
Solution: B > C > A
shouldnt it be a>b>c
answer giver:Boiling points of amines depends upon their degree of association and degree of association is further depend upon the extent of H - Bonding. Since 1 Degree amine has to 2 degree amine has 1 and 3 degree amine has no hydrogen atom linked to nitrogen atom. Hence 1 Degree amine has highest boiling point. Hence answer should be B > C >A
but doesnt ethylenediamine have 2 NH2 s? hence wont it have greater H bonding?
Question 13: Place the isomeric compounds ethylenediamine(A), n-butylamine (B) and diethylamine(C) in order of decreasing boiling points and give an explanation.
Solution: B > C > A
shouldnt it be a>b>c
answer giver:Boiling points of amines depends upon their degree of association and degree of association is further depend upon the extent of H - Bonding. Since 1 Degree amine has to 2 degree amine has 1 and 3 degree amine has no hydrogen atom linked to nitrogen atom. Hence 1 Degree amine has highest boiling point. Hence answer should be B > C >A
but doesnt ethylenediamine have 2 NH2 s? hence wont it have greater H bonding?




