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Practice Aldehyde And Ketone - Organic Chemistry - Chemistry previous year questions organised from real papers, with year-wise coverage and clear topic navigation.
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| Paper | Year / session | Questions in this view | Open |
|---|---|---|---|
| COMEDK 2026 Afternoon Shift | 2026 | 6 | View paper |
| COMEDK 2026 Morning Shift | 2026 | 4 | View paper |
| COMEDK 2025 AFTERNOON SHIFT | 2025 | 2 | View paper |
| COMEDK 2025 EVENING SHIFT | 2025 | 2 | View paper |
| COMEDK 2025 Morning Shift | 2025 | 3 | View paper |
| COMEDK 2024 AFTERNOON SHIFT | 2024 | 2 | View paper |
| COMEDK 2024 EVENING SHIFT | 2024 | 4 | View paper |
| COMEDK 2024 MORNING SHIFT | 2024 | 4 | View paper |
| COMEDK 2023 EVENING SHIFT | 2023 | 4 | View paper |
| COMEDK 2023 Morning Shift | 2023 | 3 | View paper |
| COMEDK 2022 | 2022 | 2 | View paper |
| COMEDK 2021 | 2021 | 2 | View paper |
| COMEDK 2020 | 2020 | 2 | View paper |
Practice every matching question in batches of 20, with every available option.
The product formed when hydroxylamine condenses with a carbonyl compound is called
Find the product formed for the given reaction.
$$\mathrm{{C_6}{H_5}CHO + {H_3}C - C{H_2} - CHO\buildrel {Dil.\,NaOH/\Delta } \over \longrightarrow}$$
From among the following, identify the compound which forms two moles of a ketone on ozonolysis.
[A] 2,3-Dimethylbutane.
[B] 3-Methyl-1-pentene.
[C] 2,3-Dimethyl-2-butene.
[D] 2-Methyl-2-pentane.
What would be the products obtained when a mixture of p-Methoxy benzaldehyde and Methanal are heated with \(50 \%\) concentrated Caustic soda solution?
Identify the final product formed during the course of the given reactions.
Pentan-2-one \(\xrightarrow{\mathrm{NaCN} / \mathrm{HCl}}[\mathrm{X}]\)
$$[\mathrm{X}] \xrightarrow[95 \% \mathrm{H}_3 \mathrm{PO}_4]{\Delta \text { with }}[Y]$$
Which of the following compounds undergo Aldol condensation followed by dehydration to give 3-phenylprop-2-en-1-al?
Identify the end-product [D] formed when solution salicylate undergoes the following series of reactions

Given are the names of 4 compounds. Two of these compounds will not undergo Cannizzaro's reaction. Identify the two.
A. 2-Chlorobutanal
B. 2,2-Dimethylpropanal
C. Benzaldehyde
D. 2-Phenyl ethanol
Which one of the following is the correct order of reagents to be used to convent [A] to [X] ?

$$\text { Reagents: } \mathrm{PCC}, \mathrm{PCl}_5, \mathrm{LiAlH}_4, \frac{\mathrm{KCN}}{\mathrm{H}_3 \mathrm{O}^{+}}$$
What is/are the product/s formed when Benzaldehyde and Ethanal react in presence of dil. \(\mathrm{NaOH}\) followed by heating the intermediate product formed?
$$\text { Identify }[\mathrm{B}] \text { and }[\mathrm{C}] \text { formed in the reactions given below. }$$

A Carbonyl compound \(\mathrm{X}\) when reacted with Methyl magnesium bromide followed by hydrolysis gave product \(\mathrm{Y}\). When \(\mathrm{Y}\) is heated with \(\mathrm{Cu}\) at \(573 \mathrm{~K}\), it gave \(\mathrm{Z}\) (2- Methylbut-2-ene) as one of the products. Identify \(\mathrm{X}\).
Which one of the following statements is incorrect regarding acetal and ketal formation when Propanal and Propanone are separately reacted with Ethanol in presence of anhydrous \(\mathrm{HCl}\) gas.
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