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Chemistry · 2026 · 2 marks
CBSE 2026 · Region 1 · Set 1 · Q17
What type of deviation from Raoult's law is shown by a mixture of phenol and aniline? Give reason. What will happen to the boiling point of the…
What type of deviation from Raoult's law is shown by a mixture of phenol and aniline ? Give reason. What will happen to the boiling point of the solution on mixing phenol and aniline ?
Marking-scheme solution
•
Negative deviation
•
Solute -solvent interactions are stronger than solute-solute and solvent-
solvent. / The intermolecular hydrogen bonding between phenolic
proton and lone pair on nitrogen atom of aniline is stronger than the
respective intermolecular hydrogen bonding between similar molecules
•
Boiling point of the solution increases.
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CBSE Class 12 Chemistry past-paper question from the 2026 board exam, with the answer as CBSE’s own marking scheme gives it. Where our answers come from.