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Chemistry · 2026 · 1 mark
CBSE 2026 · Region 1 · Set 3 · Q16
Assertion (A): It is not possible to separate the components of an azeotrope by fractional distillation. Reason (R): Minimum boiling azeotrope is…
Assertion (A) : It is not possible to separate the components of an azeotrope by fractional distillation.
Reason (R) : Minimum boiling azeotrope is formed by the solutions showing large positive deviation from Raoult's law.
Official answer
(B)
Both Assertion (A) and Reason (R) are true, but Reason (R) is not the correct explanation of the Assertion (A).
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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.