NEET Chemistry / AI question bank / NCERT Class 12 / Organic Compounds Containing Oxygen
Alcohols, Phenols and Ethers: NEET questions with solutions
NEET tests the acidity order of alcohols and substituted phenols, the Lucas test, oxidation products of primary, secondary and tertiary alcohols, Kolbe and Reimer-Tiemann reactions, Williamson synthesis and how HI cleaves ethers. Marks are lost on the direction of ether cleavage and on which alkyl halide suits Williamson synthesis.
Also called: alcohols · phenols · ethers
Questions
10 questions / answers after you pick
- Q1Which alcohol gives turbidity at once with the Lucas reagent (conc. HCl + ZnCl₂) at room temperature?
Reactions of alcoholsEasySingle correct
- Q2Why is phenol more acidic than ethanol?
Acidity of alcohols and phenolsEasySingle correct
- Q3Which pair of reagents is the better choice for making tert-butyl methyl ether by Williamson synthesis?
Preparation of ethersEasySingle correct
- Q4Arrange in order of INCREASING acid strength: (I) phenol, (II) 4-nitrophenol, (III) 4-methylphenol, (IV) ethanol.
Acidity of alcohols and phenolsMediumSingle correct
- Q5Butan-2-ol is oxidised with acidified potassium dichromate. What is the main product?
Oxidation of alcoholsMediumSingle correct
- Q6Phenol is treated with chloroform and aqueous NaOH, and the product is then acidified. What is the main product?
Reactions of phenolsMediumSingle correct
- Q7Phenol reacts with bromine under different conditions to give different products. Judge the Assertion (A) and the Reason (R) below.
Reactions of phenolsMediumAssertion–Reason
- Q8Methanol and ethanol are the two simplest alcohols of commercial importance. Which of the statements below are correct?
Methanol and ethanolMediumStatement based
- Q9Each ether in List I is heated with one equivalent of HI. Match it with the pair of products in List II.
Reactions of ethersHardMatch the following
- Q10Propene is treated with diborane, and the product is oxidised with H₂O₂ in aqueous NaOH. Which alcohol forms, and how does it compare with…
Preparation of alcoholsHardSingle correct
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