The correct order of boiling points of N-ethy | vedclass

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(C) The boiling point depends on the strength of intermolecular forces. $1$. Ethoxyethane $(II)$ is an ether,which exhibits only weak dipole-dipole in

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$II < I < III$

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(C) The boiling point depends on the strength of intermolecular forces. $1$. Ethoxyethane $(II)$ is an ether,which exhibits only weak dipole-dipole interactions. $2$. $N$-ethylethanamine $(I)$ is a secondary amine,which exhibits hydrogen bonding,but it is weaker than the hydrogen bonding in alcohols due to the lower electronegativity of $N$ compared to $O$. $3$. Butan$-2-$ol $(III)$ is an alcohol,which exhibits strong intermolecular hydrogen bonding. Therefore,the order of boiling points is $II < I < III$.

The correct order of boiling points of $N$-ethylethanamine $(I)$,ethoxyethane $(II)$ and butan$-2-$ol $(III)$ is

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