1. Tardigrade
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  4. The correct order of boiling points of the following isomeric amines is C4H9NH2, (C2H5)2NH, C2H5N(CH3)2

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Q. The correct order of boiling points of the following isomeric amines is
$C_4H_9NH_2$, $(C_2H_5)_2NH$, $C_2H_5N(CH_3)_2$

Amines

Solution:

Order of Boiling points of amines:
Primary amines $\left( R N H _{2}\right)>$ Secondary amines $\left( R _{2} N H \right)>$ Tertiary amines $\left( R ^{\prime} N R _{2}\right)$
Intermolecular hydrogen bonding is more in primary amines than that in secondary amines and nil in tertiary amines as there are no hydrogens attached to the nitrogen atom.
$C _{4} H _{9} NH _{2}>\left( C _{2} H _{5}\right)_{2} NH > C _{2} H _{5} N \left( CH _{3}\right)_{2}$