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Which of the following is not the consequence of \( \boldsymbol{H} \) -bonding?

1. Glycerol is more soluble in water than ethanol
2. Boiling point of \( C_{2} H_{5} O H \) is higher than \( C H_{3}-O- \) \( C H_{3} \)
3. p-nitrophenol has higher boiling point than onitrophenol
4. \( H C l \) is water soluble due to \( H \) -bonding.

Correct answer: p-nitrophenol has higher boiling point than onitrophenol

Solution

o-Nitrophenol forms intramolecular hydrogen bonding, which reduces intermolecular attraction and lowers its boiling point. p-Nitrophenol forms intermolecular hydrogen bonding, so it has the higher boiling point; this is the correct consequence of H-bonding, not the exception.

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