NEET 2024 · ChemistryPrevious Year Question
Which one of the following alcohols reacts instantaneously with Lucas reagent?
Answer: (C) (C). \textbf{Answer:} (C) \textbf{Solution:} The Lucas reagent (conc.
- A.(A)
- B.(B)
- C.(C)✓
- D.(D)
Correct Answer
(C) (C)
Solution & Explanation
\textbf{Answer:} (C) \textbf{Solution:} The Lucas reagent (conc. + ) reacts fastest with tertiary alcohols, because they ionise to a stable 3 carbocation and give immediate turbidity at room temperature. Option (C) is the tertiary alcohol, so it reacts instantaneously, whereas the primary and secondary alcohols in the other options react slowly or not at all at room temperature.
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