10 public questions tagged with this topic.
Benzaldehyde undergoes Cannizzaro reaction in the presence of concentrated NaOH to form benzyl alcohol and sodium benzoate. This follows from NCERT principle where the relation explains the outcome clearly for students in simple steps.
Ref: NCERT Chemistry Textbook for Class XI and XII, Chapter: Relevant Chemistry topic covering principles and examples as per NCERT.
Etard reaction involves the partial oxidation of toluene using chromyl chloride (CrO₂Cl₂) to form benzaldehyde. This follows from latest NCERT 2026-27 principle explaining the concept clearly for NEET students in simple steps as per rationalized syllabus.
Ref: NCERT Chemistry Textbook - Latest Edition for Academic Session 2026-27 (Rationalized Textbook for Class XI and XII)Topic: Mole concept, atomic structure, chemical formulas like H₂O, CO₂, CH₃CH₂NH₂ and periodic trends.
Benzaldehyde reacts with a Grignard reagent followed by hydrolysis to form benzophenone. This follows from latest NCERT 2026-27 principle explaining the concept clearly for NEET students in simple steps as per rationalized syllabus.
Ref: NCERT Chemistry Textbook - Latest Edition for Academic Session 2026-27 (Rationalized Textbook for Class XI and XII)Topic: Mole concept, atomic structure, chemical formulas like H₂O, CO₂, CH₃CH₂NH₂ and periodic trends.
Rosenmund reduction (H₂,Pd/BaSO₄) reduces acyl chlorides to aldehydes. Benzoyl chloride (C₆H₅COCl) yields benzaldehyde (C₆H₅CHO).
Ref: NCERT Class 12 Chemistry > Chapter 12: Aldehydes, Ketones and Carboxylic Acids > Topic: Reactions due to α-Hydrogen - Aldol, Cannizzaro and Acidity of Carboxylic Acids
Benzaldehyde (C₆H₅CHO) lacks α-hydrogens, so it undergoes Cannizzaro reaction, forming benzyl alcohol (C₆H₅CH₂OH) and benzoate.
Ref: NCERT Class 12 Chemistry > Chapter 12: Aldehydes, Ketones and Carboxylic Acids > Topic: Physical Properties and Nucleophilic Addition Reactions
Hydroxylamine (NH₂OH) reacts with the carbonyl group of benzaldehyde (C₆H₅CHO) to form benzaldoxime (C₆H₅CH\=NOH).
Ref: NCERT Class 12 Chemistry > Chapter 12: Aldehydes, Ketones and Carboxylic Acids > Topic: Nomenclature, Structure and Preparation of Aldehydes and Ketones
The iodoform test is positive for compounds with a CH₃C\=O group, like acetophenone (C₆H₅COCH₃), but not for benzaldehyde (C₆H₅CHO).
Ref: NCERT Class 12 Chemistry > Chapter 12: Aldehydes, Ketones and Carboxylic Acids > Topic: Nomenclature, Structure and Preparation of Aldehydes and Ketones
Benzyl alcohol (C₆H₅CH₂OH), a primary alcohol, is oxidized to benzaldehyde (C₆H₅CHO) with PCC, which stops at the aldehyde stage.
Ref: NCERT Class 12 Chemistry > Chapter 7: Alcohols, Phenols and Ethers > Topic: Physical Properties and Acidity of Alcohols and Phenols
