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- Subject
- Aldehydes and Ketoneschemistry-mcqs › aldehydes-and-ketones
- Published
- 18 Mar 2019
- Last updated
- 28 May 2026
Explanation
Formaldehyde does not participate in aldol condensation reactions because it lacks alpha-hydrogen atoms necessary for enolate formation, unlike acetaldehyde, dimethyl ketone, and propionaldehyde which can undergo such reactions.
More Aldehydes and Ketones MCQs
Practice related questions from the same subject.
- 1.In a base-catalyzed reaction involving a carbonyl compound, what role does the catalyst play?
- 2.Identify the ketone that is symmetrical from the options below:
- 3.Which compound is capable of undergoing aldol condensation?
- 4.What is the product formed when acetaldehyde cyanohydrin undergoes acid hydrolysis?
- 5.In the industrial production of ethanal via air oxidation of ethylene, palladium chloride is used as the catalyst. Which compound acts as the promoter in this process?
- 6.What is the general formula shared by the homologous series of aldehydes and ketones?
- 7.What is the color of the precipitate formed when aldehydes are heated with Fehling's solution?
- 8.What is the percentage of water present in formalin, which is a solution containing formaldehyde, methyl alcohol, and water?
More in Chemistry Mcqs
- Alcohols Phenols and Ethers
- Aliphatic Hydrocarbons
- Alkyl Halides
- Aromatic Hydrocarbons
- Atomic Structure
- Carboxylic Acids
- Chemical Bonding
- Chemical Equilibrium
- Chemistry Basic Concept
- Common Chemical Industries
- Diagnostic Test
- Electrochemistry
- Environmental Chemistry
- Experimental Techniques
- Gases
- Group III A and IVA Elements
- Group VA and VIA Elements
- Liquids and Solids
- Macromolecules
- Organic Chemistry
- Periodic Classification
- Reaction Kinetics
- S-BLOCK ELEMENTS
- Solutions
- The Halogens and The Noble Gases
- Thermochemistry
- Transition Elements