9 public questions tagged with this topic.
Benzyl chloride (C₆H₅CH₂Cl) undergoes nucleophilic substitution with aqueous NaOH to replace -Cl with -OH, forming benzyl alcohol (C₆H₅CH₂OH).
Ref: NCERT Class 12 Chemistry > Chapter 7: Alcohols, Phenols and Ethers > Topic: Preparation of Phenols and Ethers - Williamson and Other Methods
Hydroboration-oxidation of propene (CH₃-CH=CH₂) follows anti-Markovnikov addition, yielding propan-1-ol (CH₃-CH₂-CH₂OH).
Ref: NCERT Class 12 Chemistry > Chapter 7: Alcohols, Phenols and Ethers > Topic: Preparation of Alcohols - from Alkenes Haloalkanes Carbonyls Grignard
Ethyl magnesium chloride (CH₃CH₂MgCl) reacts with formaldehyde (HCHO), adding the ethyl group to the carbonyl carbon, and hydrolysis yields propan-1-ol (CH₃CH₂CH₂OH).
Ref: NCERT Class 12 Chemistry > Chapter 7: Alcohols, Phenols and Ethers > Topic: Preparation of Alcohols - from Alkenes Haloalkanes Carbonyls Grignard
Styrene (CH₂=CH-C₆H₅) undergoes acid-catalyzed hydration with H₂SO₄ and H₂O, adding -OH to the more substituted carbon (Markovnikov addition), forming 1-phenylethanol.
Ref: NCERT Class 12 Chemistry > Chapter 7: Alcohols, Phenols and Ethers > Topic: Classification and Nomenclature and Structures of Alcohols Phenols Ethers
Methyl magnesium bromide (CH₃MgBr) reacts with acetone (CH₃COCH₃), adding the methyl group to the carbonyl carbon, and hydrolysis yields 2-methylpropan-2-ol ((CH₃)3COH).
Ref: NCERT Class 12 Chemistry > Chapter 7: Alcohols, Phenols and Ethers > Topic: Classification and Nomenclature and Structures of Alcohols Phenols Ethers
In Kolbe’s reaction, phenol reacts with CO₂ under basic conditions followed by acidification to form salicylic acid (2-hydroxybenzoic acid).
Ref: NCERT Class 12 Chemistry > Chapter 7: Alcohols, Phenols and Ethers > Topic: Chemical Reactions of Phenols and Ethers and Uses
At 140°C, propan-1-ol undergoes intermolecular dehydration in the presence of conc. H₂SO₄ to form di-n-propyl ether (CH₃CH₂CH₂-O-CH₂CH₂CH₃). Alkene formation occurs at higher temperature (~170°C).
Ref: NCERT Class 12 Chemistry > Chapter 7: Alcohols, Phenols and Ethers > Topic: Chemical Reactions of Alcohols - Dehydration Oxidation Esterification
Wurtz reaction of (CH₃)2CHCH₂Cl (1-chloro-2-methylpropane) forms (CH₃)2CHCH₂CH₂CH(CH₃)2 (2,5-dimethylhexane), a branched six-carbon alkane.
Ref: NCERT Class 12 Chemistry > Chapter 6: Haloalkanes and Haloarenes > Topic: Elimination Reactions and Reaction with Metals and Other Reactions
CH₃CH₂CH₂CH₂Br forms a Grignard reagent ( CH₃CH₂CH₂CH₂MgBr ), which hydrolyzes to pentane ( CH₃CH₂CH₂CH₂CH₃ ).
Ref: NCERT Class 12 Chemistry > Chapter 6: Haloalkanes and Haloarenes > Topic: Elimination Reactions and Reaction with Metals and Other Reactions
