Aldehydes, Ketones and Carboxylic Acids questions
1139 published questions with worked solutions.
- Three of the following four reactions are due to one similar feature of carbonyl compounds, while the fourth one is different....
- Ethyl acetate is obtained by acetaldehyde in one step process by
- A compound C₅H₁₀O gives a positive test of carbonyl group, gives a negative test with Fehling solution but gives positive...
- The end product of CH₃COOH --CaCO₃, heat--> A --NH₂OH--> B --Reduction--> C. A and B are
- In the sequence, A --NH₂OH--> CH₃CH=NOH --Reduction--> B. A and B are
- Statement 1: CH₃⁻ adds to >C=O group irreversibly, but CN⁻ ion adds reversibly. Statement 2: CH₃⁻ ion is a much stronger...
- Acetone + mercaptan --HCl--> X --4[O]--> Y. Identify 'Y' in the above sequence.
- Aldehyde not showing Cannizzaro's reaction is
- Which of the following carbonyl compounds on condensation gives an aromatic compound?
- Both HCHO and CH₃CHO give similar reactions with all the reagents except
- Statement 1: Halogen acids do not add on to carbonyl bond. Statement 2: Addition depends upon the polarization of HX and carbonyl...
- Which of the following compounds cannot form an optically active cyanohydrin on reaction with HCN?
- Which of the following compounds neither forms semicarbazone nor oxime?
- CH₃CH₂–CHO --Dil. alkali--> product. The product in the above reaction is
- Which reagent is most suitable for the synthesis of HOCH₂CH₂CH₂COOH from HOCH₂CH₂CH₂Br?
- CH₃CH=CH₂ + CO + H₂O --H₃PO₄, 675 K--> CH₃–CH(COOH)–CH₃. This reaction is called
- A five-membered cyclic ester (γ-valerolactone-type ring, bearing a methyl substituent) --Hydrolysis--> [X]. What is "X"?
- With the help of the following Grignard synthesis, which carboxylic acid is formed?
- The product obtained in the reaction R–CH(OH)–CH₂–COOH --Heat--> ? is
- Arrange the following carboxylic acids in order of decreasing acidity: Oxalic acid (I), Malonic acid (II), Succinic acid (III).
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