21 public questions tagged with this topic.
Phenol reacts with dilute HNO₃ to form a mixture of 2-nitrophenol and 4-nitrophenol, with 2-nitrophenol being a significant product due to ortho-para directing effect of -OH.
Ref: NCERT Class 12 Chemistry > Chapter 7: Alcohols, Phenols and Ethers > Topic: Preparation of Phenols and Ethers - Williamson and Other Methods
Phenol (C₆H₅OH) reacts with Na to form sodium phenoxide (C₆H₅ONa) and H₂ gas, showcasing its acidic nature.
Ref: NCERT Class 12 Chemistry > Chapter 7: Alcohols, Phenols and Ethers > Topic: Preparation of Phenols and Ethers - Williamson and Other Methods
Phenol is more acidic due to resonance stabilization of the phenoxide ion, allowing it to form a soluble salt with NaOH, unlike ethanol, which is a weaker acid.
Ref: NCERT Class 12 Chemistry > Chapter 7: Alcohols, Phenols and Ethers > Topic: Physical Properties and Acidity of Alcohols and Phenols
The -OH group donates electrons to the benzene ring via resonance, increasing electron density at ortho and para positions, thus activating it for electrophilic substitution.
Ref: NCERT Class 12 Chemistry > Chapter 7: Alcohols, Phenols and Ethers > Topic: Physical Properties and Acidity of Alcohols and Phenols
Phenol (C₆H₅OH) reacts with sodium metal to form sodium phenoxide (C₆H₅ONa) and hydrogen gas, showcasing its acidic nature.
Ref: NCERT Class 12 Chemistry > Chapter 7: Alcohols, Phenols and Ethers > Topic: Physical Properties and Acidity of Alcohols and Phenols
Phenol reacts with NaOH to form sodium phenoxide (C₆H₅ONa) and water, indicating its acidic nature due to the stabilization of the phenoxide ion by resonance.
Ref: NCERT Class 12 Chemistry > Chapter 7: Alcohols, Phenols and Ethers > Topic: Classification and Nomenclature and Structures of Alcohols Phenols Ethers
Phenol reacts with dilute HNO₃ to form a mixture of o-nitrophenol and p-nitrophenol due to the ortho-para directing effect of the -OH group.
Ref: NCERT Class 12 Chemistry > Chapter 7: Alcohols, Phenols and Ethers > Topic: Classification and Nomenclature and Structures of Alcohols Phenols Ethers
Phenol (C₆H₅OH) reacts with Na to form sodium phenoxide and releases hydrogen gas (H₂), indicating its acidic nature.
Ref: NCERT Class 12 Chemistry > Chapter 7: Alcohols, Phenols and Ethers > Topic: Classification and Nomenclature and Structures of Alcohols Phenols Ethers
Phenol reacts with conc. HNO₃ to form 2,4,6-trinitrophenol (picric acid) due to the strong activation of the ring by the -OH group, allowing trisubstitution.
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 and NaOH under heat and pressure, followed by acidification, to form salicylic acid.
Ref: NCERT Class 12 Chemistry > Chapter 7: Alcohols, Phenols and Ethers > Topic: Chemical Reactions of Phenols and Ethers and Uses
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
In a non-polar solvent like CS₂, phenol undergoes controlled monobromination to form a mixture of o-bromophenol and p-bromophenol, with the para isomer being the major product.
Ref: NCERT Class 12 Chemistry > Chapter 7: Alcohols, Phenols and Ethers > Topic: Chemical Reactions of Phenols and Ethers and Uses
