If the boiling point of n-C4H9NH2 is 351 K, what will be the boiling point of n-C4H9OH?
Answer & explanation
Correct answer: option 3
Alcohols have higher boiling points than amines of comparable molecular masses. This is because the electronegativity of N is lower than that of O, which results in the OH bond in alcohols being more polar and hence stronger (in hydrogen bonding) than the N-H bond in amines.