n-Butylamine (I),diethylamine (II),and N,N-di | vedclass

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(A) The boiling point of amines depends on the extent of intermolecular hydrogen bonding.Primary amines $(1^o)$ have two hydrogen atoms attached to th

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$III < II < I$

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(A) The boiling point of amines depends on the extent of intermolecular hydrogen bonding.Primary amines $(1^o)$ have two hydrogen atoms attached to the nitrogen,allowing for extensive hydrogen bonding.Secondary amines $(2^o)$ have one hydrogen atom attached to the nitrogen,allowing for moderate hydrogen bonding.Tertiary amines $(3^o)$ have no hydrogen atoms attached to the nitrogen,so they cannot form intermolecular hydrogen bonds.Therefore,the order of boiling points is $1^o > 2^o > 3^o$.$n$-Butylamine $(I)$ is a primary amine,diethylamine $(II)$ is a secondary amine,and $N,N$-dimethylethylamine $(III)$ is a tertiary amine.Thus,the correct order is $III < II < I$.

$n$-Butylamine $(I)$,diethylamine $(II)$,and $N,N$-dimethylethylamine $(III)$ have the same molecular mass. Arrange them in the increasing order of their boiling points.

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