Question:
The molecule with a maximum boiling point is
The molecule with a maximum boiling point is
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Hydrogen bonding raises the boiling point most, and a diol has two OH groups.
Updated On: Oct 1, 2026
- \(\text{CH}_3-\text{CH}(\text{OH})-\text{CH}_2-\text{CH}_2-\text{OH}\)
- \(\text{CH}_3-\text{CH}_2-\text{Br}\)
- \(\text{CH}_3-\text{CH}_2-\text{CH}_2-\text{Br}\)
- \(\text{CH}_3-\text{C}(\text{CH}_3)(\text{Cl})-\text{OH}\)
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The Correct Option is A
Solution and Explanation
Step 1: Compare intermolecular forces
Compound (A) is butane-1,3-diol with two OH groups, so it forms strong hydrogen bonds in many directions.
(B) and (C) are alkyl bromides with only dipole and dispersion forces.
(D) has one OH group and a smaller molar mass.
Step 2: Decide
Two OH groups give the strongest hydrogen bonding, so (A) has the highest boiling point.
Final Answer:
The diol (A) has the highest boiling point. \[ \boxed{\text{(A)}} \]
Compound (A) is butane-1,3-diol with two OH groups, so it forms strong hydrogen bonds in many directions.
(B) and (C) are alkyl bromides with only dipole and dispersion forces.
(D) has one OH group and a smaller molar mass.
Step 2: Decide
Two OH groups give the strongest hydrogen bonding, so (A) has the highest boiling point.
Final Answer:
The diol (A) has the highest boiling point. \[ \boxed{\text{(A)}} \]
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