Aldehyde and Ketone PYQs - Last 10 Years
MHT CET / Chemistry / Organic Chemistry / 137 recent questions
ChemistryOrganic Chemistry2017-2026
Practice 137 MHT CET Chemistry questions from Aldehyde and Ketone. Use the year-wise and type-wise breakdown to prioritize recent PYQs, then continue into the question list below.
137
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Chemistry / Organic Chemistry
2019-2026
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102
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2022-2026
137
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2017-2026
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Last 10 Years Aldehyde and Ketone Questions
Showing 37 of 137 filtered questions.
1Aldehyde And Ketone
Identify compound \(\mathrm{A}\) in following reaction
Benzene + Ozone (excess) \(\rightarrow\) Benzenetriozonide \(\xrightarrow{\mathrm{A}}\) Glyoxal
Benzene + Ozone (excess) \(\rightarrow\) Benzenetriozonide \(\xrightarrow{\mathrm{A}}\) Glyoxal
MCQ+1 / -02022
2Aldehyde And Ketone
What is the product formed when cumene is air oxidised in presence of Co-naphthenate and further treated with dilute acid?
MCQ+1 / -02022
3Aldehyde And Ketone
To obtain 3-methylbutan-2-ol from acetaldehyde, the Grignard's reagent used is
MCQ+1 / -02021
4Aldehyde And Ketone
Which of the following aldehyde has buttery odour?
MCQ+1 / -02021
5Aldehyde And Ketone
Which of the following reaction is an example of Rosenmund reduction?
MCQ+1 / -02021
6Aldehyde And Ketone
Which of the following aldehydes is less reactive towards nucleophilic addition reaction?
MCQ+1 / -02021
7Aldehyde And Ketone
Cannizzaro reaction is an example of
MCQ+1 / -02021
8Aldehyde And Ketone
Identify product \(\mathrm{C}\) in following conversion.
m - Hydroxy Benzaldehyde \(\xrightarrow[\text { [Protection of }-\mathrm{OH} \text { group] }]{\mathrm{C}_6 \mathrm{H}_5 \mathrm{CH}_2 \mathrm{Cl}}\) $$
\mathrm{A} \xrightarrow{[\ma...
m - Hydroxy Benzaldehyde \(\xrightarrow[\text { [Protection of }-\mathrm{OH} \text { group] }]{\mathrm{C}_6 \mathrm{H}_5 \mathrm{CH}_2 \mathrm{Cl}}\) $$
\mathrm{A} \xrightarrow{[\ma...
MCQ+1 / -02021
9Aldehyde And Ketone
What is the product formed when side chain chlorination of toluene is carried out followed by acid hydrolysis at \(373 \mathrm{~K}\) ?
MCQ+1 / -02021
10Aldehyde And Ketone
Identify the reagent used in following conversion.
Pent -3 -enenitrile \(\xrightarrow{\mathrm{A}}\) pent -3 -enal
Pent -3 -enenitrile \(\xrightarrow{\mathrm{A}}\) pent -3 -enal
MCQ+1 / -02021
11Aldehyde And Ketone
Identify compound A from following reaction.
\(\mathrm{A}+\mathrm{C}_2 \mathrm{H}_5 \mathrm{MgBr} \xrightarrow[\text { ety }]{\text { drer }} \mathrm{B} \xrightarrow{\mathrm{H}_3 \mathrm{O}^{+}} \text {3-methylpentan-3-ol }\)
\(\mathrm{A}+\mathrm{C}_2 \mathrm{H}_5 \mathrm{MgBr} \xrightarrow[\text { ety }]{\text { drer }} \mathrm{B} \xrightarrow{\mathrm{H}_3 \mathrm{O}^{+}} \text {3-methylpentan-3-ol }\)
MCQ+1 / -02021
12Aldehyde And Ketone
Identify product B in following reaction.
Propanone \(\xrightarrow{\mathrm{Ba}(\mathrm{OH})_2} \mathrm{~A} \xrightarrow[-\mathrm{H}_2 \mathrm{O}]{\Delta} \mathrm{B}\)
Propanone \(\xrightarrow{\mathrm{Ba}(\mathrm{OH})_2} \mathrm{~A} \xrightarrow[-\mathrm{H}_2 \mathrm{O}]{\Delta} \mathrm{B}\)
MCQ+1 / -02021
13Aldehyde And Ketone
Identify 'A' in following reaction.
A \(\mathrm{\buildrel {Dimethyl\,cadmium} \over \longrightarrow}\) propanone + cadmium chloride
A \(\mathrm{\buildrel {Dimethyl\,cadmium} \over \longrightarrow}\) propanone + cadmium chloride
MCQ+1 / -02021
14Aldehyde And Ketone
Identify the product '\(B\)' in following reaction.
\(2 \mathrm{CH}_3 \mathrm{CHO} \xrightarrow{\text { dil. } \mathrm{NaOH}} \mathrm{A} \xrightarrow[-\mathrm{H}_2 \mathrm{O}]{\Delta} \mathrm{B}\)
\(2 \mathrm{CH}_3 \mathrm{CHO} \xrightarrow{\text { dil. } \mathrm{NaOH}} \mathrm{A} \xrightarrow[-\mathrm{H}_2 \mathrm{O}]{\Delta} \mathrm{B}\)
MCQ+1 / -02021
15Aldehyde And Ketone
Which from following reactions converts carbonyl group of aldehydes and ketones to methylene group on treatment with zinc amalgam and concentrated \(\mathrm{HCl}\) ?
MCQ+1 / -02021
16Aldehyde And Ketone
Identify the reagent used in following conversion.
MCQ+1 / -02021
17Aldehyde And Ketone
Identify the product formed when benzoyl chloride is reduced by hydrogen using palladium catalyst poisoned with barium sulphate?
MCQ+1 / -02021
18Aldehyde And Ketone
Identify the name of following reaction.
Toluene + chromyl chloride \(\stackrel{\mathrm{CS}_2}{\longrightarrow}\) complex \(\stackrel{\mathrm{H}_3 \mathrm{O}^{+}}{\longrightarrow}\) Benzaldehyde
Toluene + chromyl chloride \(\stackrel{\mathrm{CS}_2}{\longrightarrow}\) complex \(\stackrel{\mathrm{H}_3 \mathrm{O}^{+}}{\longrightarrow}\) Benzaldehyde
MCQ+1 / -02021
19Aldehyde And Ketone
Which of the following reagents is used in the reaction shown below?
Benzoyl chloride \(\stackrel{?}{\longrightarrow}\) Benzaldehyde
Benzoyl chloride \(\stackrel{?}{\longrightarrow}\) Benzaldehyde
MCQ+1 / -02021
20Aldehyde And Ketone
Which of the following compounds on reaction with ammonical silver nitrate solution forms precipitate of silver?
MCQ+1 / -02021
21Aldehyde And Ketone
The reagent used in Gatterman-Koch formylation of arene is
MCQ+1 / -02021
22Aldehyde And Ketone
Which of the following compounds on reaction with Grignard reagent followed by hydrolysis forms secondary alcohol?
MCQ+1 / -02021
23Aldehyde And Ketone
When alcoholic solution of an organic compound is treated with few drops of Schiff's reagent, pink colour appears. This confirms the presence of group
MCQ+1 / -02021
24Aldehyde And Ketone
Identify the product formed in the following reaction,
\(\mathrm{CH}_3-\mathrm{CH}=\mathrm{CH}-\mathrm{CH}_2-\mathrm{CHO} \mathrm{\mathrel{\mathop{\kern0pt\longrightarrow} \limits_{(ii)\,{H_2}{O^ + }}^{(i)\,LiAl{H_4}}}} \text {Products }\)
\(\mathrm{CH}_3-\mathrm{CH}=\mathrm{CH}-\mathrm{CH}_2-\mathrm{CHO} \mathrm{\mathrel{\mathop{\kern0pt\longrightarrow} \limits_{(ii)\,{H_2}{O^ + }}^{(i)\,LiAl{H_4}}}} \text {Products }\)
MCQ+1 / -02021
25Aldehyde And Ketone
Which among the following compounds has highest boiling point?
MCQ+1 / -02021
26Aldehyde And Ketone
Which of the following compounds reacts with ammonia to form urotropine?
MCQ+1 / -02020
27Aldehyde And Ketone
Identify $A$ in the following reaction.
\(A+\mathrm{CH}_3 \mathrm{MgBr} \xrightarrow{\text { Ether }} \text { complex }\xrightarrow{\mathrm{H}_3 \mathrm{O}^{+}}\left(\mathrm{CH}_3\right)_3 \mathrm{C}-\mathrm{OH}\)
\(A+\mathrm{CH}_3 \mathrm{MgBr} \xrightarrow{\text { Ether }} \text { complex }\xrightarrow{\mathrm{H}_3 \mathrm{O}^{+}}\left(\mathrm{CH}_3\right)_3 \mathrm{C}-\mathrm{OH}\)
MCQ+1 / -02020
28Aldehyde And Ketone
Which of the following is a Stephen reaction?
MCQ+1 / -02020
29Aldehyde And Ketone
Which of the following compound is highly reactive towards HCN?
MCQ+1 / -02020
30Aldehyde And Ketone
Which of the following statements is true for carbonyl group?
MCQ+1 / -02020
31Aldehyde And Ketone
Which of the following alcohols needs acidic \(\mathrm{KMnO}_4\) to convert it into aldehyde or ketone?
MCQ+1 / -02020
32Aldehyde And Ketone
Propane nitrile on reaction with ethyl magnesium iodide in presence of dry ether gives complex. This imine complex on acid hydrolysis forms
MCQ+1 / -02020
33Aldehyde And Ketone
An acylchloride is hydrogenated over catalyst palladium on barium sulphate to form an aldehyde. This reaction is called as
MCQ+1 / -02020
34Aldehyde And Ketone
Number of oxygen atoms present in salicylaldehyde are
MCQ+1 / -02020
35Aldehyde And Ketone
Which of the following does not give yellow solid on treatment with sodium hypoiodite?
MCQ+1 / -02019
36Aldehyde And Ketone
Mandelonitrile is obtained by the reaction between hydrogen cyanide and
MCQ+1 / -02019
37Aldehyde And Ketone
In the reaction, $\mathrm{C}_6 \mathrm{H}_5 \mathrm{COCH}_3 \xrightarrow[\mathrm{Zn}-\mathrm{Hg} / \text { conc. } \mathrm{HCl}]{[\mathrm{H}]} X,X$ is
MCQ+1 / -02019