Question:
Assertion (A): Boiling point of (C6H5)2NH is lower than that of n-C4H9NH2.
Reason (R): Hydrogen bonding is much more extensive in (C6H5)2NH as compared to n-
C4H9NH2.
Assertion (A): Boiling point of (C6H5)2NH is lower than that of n-C4H9NH2.
Reason (R): Hydrogen bonding is much more extensive in (C6H5)2NH as compared to n-
C4H9NH2.
Updated On: Jun 25, 2025
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Solution and Explanation
The boiling point of (C6H5)2NH is indeed lower than that of n-C4H9NH2, but the reason is
not the extent of hydrogen bonding. The lower boiling point is due to the large hydrophobic
nature of phenyl groups, which reduces the strength of hydrogen bonding in (C6H5)2NH.
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