MCQ
Lucas test is used to distinguish between
- ✓${1^o},\,{2^o}$ and ${3^o}$ alcohols
- B${1^o},\,\,{2^o}$ and ${3^o}$ amines
- CAldehydes and ketones
- DAlkenes and alkynes
✓
Answer
Correct option: A.
${1^o},\,{2^o}$ and ${3^o}$ alcohols
a
Lucas test is used to distinguish between $1^{\circ}, 2^{\circ}$ and $3^{\circ}$ alcohols.
Lucas test is used to distinguish between $1^{\circ}, 2^{\circ}$ and $3^{\circ}$ alcohols.
Lucas reagent is a solution of anhydrous zinc chloride in concentrated hydrochloric acid.
The Lucas test in alcohols is a test to differentiate between primary $\left(1^{\circ}\right)$, secondary $\left(2^{\circ}\right)$, and tertiary $\left(3^{\circ}\right)$ alcohols.
Tertiary alcohols react immediately with Lucas reagent.
Secondary alcohols react within $10-15$ minutes (depending on their solubility).
Primary alcohols do not react appreciably with Lucas reagent at room temperature.
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