Q41.An organic compound (A) (molecular formula C6H12O2 ) was hydrolysed with dil. H2 SO4 to give a carboxylic acid (B) and an alcohol (C). ‘ C ’ gives white turbidity immediately when treated with anhydrous ZnCl2 and conc. HCl. The organic compound (A) is: JEE Main 2020 (04 Sep Shift 1) JEE Main Previous Year Paper (1) (2) (3) (4)
What This Question Tests
This question involves a multi-step organic deduction, requiring knowledge of ester hydrolysis and the Lucas test to identify the structures of the alcohol and acid, and consequently the parent ester.
Concepts Tested
Formulas Used
RCOOR' + H2O → RCOOH + R'OH
R3C-OH + HCl/ZnCl2 → R3C-Cl + H2O
📚 NCERT Sections This Tests
7.6 — Give Structures Of The Products You Would Expect When Each Of The
Chemistry Class 12 · Chapter 7
7.6 Give structures of the products you would expect when each of the following alcohol reacts with (a) HCl –ZnCl2 (b) HBr and (c) SOCl2. (i) Butan-1-ol (ii) 2-Methylbutan-2-ol
7.7 — Predict The Major Product Of Acid Catalysed Dehydration Of
Chemistry Class 12 · Chapter 7
7.7 Predict the major product of acid catalysed dehydration of (i) 1-methylcyclohexanol and (ii) butan-1-ol
6.21 — Primary Alkyl Halide C4H9Br (A) Reacted With Alcoholic Koh To Give Compound (B).
Chemistry Class 12 · Chapter 6
6.21 Primary alkyl halide C4H9Br (a) reacted with alcoholic KOH to give compound (b). Compound (b) is reacted with HBr to give (c) which is an isomer of (a). When (a) is reacted with sodium metal it gives compound (d), C8H18 which is different from the compound formed when n-butyl bromide is reacted with sodium. Give the structural formula of (a) and write the equations for all the reactions.
📋 Question Details
- Chapter
- Alcohols Phenols Ethers
- Topic
- Reactions of Alcohols
- Year
- 2020
- Shift
- 04 Sep Shift 1
- Q Number
- Q41
- Type
- MCQ
- NCERT Ref
- Class 12 Chemistry Ch 11: Alcohols, Phenols and Ethers
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