Aldehydes, Ketones and Carboxylic Acids
15 Questions
MSQ (Multiple Correct)
2025
JEE Mains
MSQ
JEE Main 2025 (Online) 28th January Morning Shift
A molecule ("P") on treatment with acid undergoes rearrangement and gives ("Q"). ("Q") on ozonolysis followed by reflux under alkaline condition gives (" $R$ "). The structure of (" $R$ ") is given below.
The structure of ("P") is
A.
B.
C.
D.
2020
JEE Mains
MSQ
JEE Main 2020 (Online) 3rd September Morning Slot
An organic compound [A], molecular formula C10H20O2
was hydrolyzed with dilute sulphuric acid to
give a carboxylic acid [B] and an alcohol [C]. Oxidation of [C] with
CrO3 - H2SO4 produced [B]. Which of the following strucutres are not possible for [A]?
CrO3 - H2SO4 produced [B]. Which of the following strucutres are not possible for [A]?
A.
(CH3)3 – C – COOCH2C(CH3)3
B.
CH3CH2CH2COOCH2CH2CH2CH3
C.
D.
2011
JEE Mains
MSQ
AIEEE 2011
Silver Mirror test is given by which one of the following compounds ?
A.
Acetone
B.
Formaldehyde
C.
Benzophenone
D.
Acetaldehyde
2023
JEE Advanced
MSQ
JEE Advanced 2023 Paper 2 Online
In the following reactions, $\mathbf{P}, \mathbf{Q}, \mathbf{R}$, and $\mathbf{S}$ are the major products.
The correct statement(s) about $\mathbf{P}, \mathbf{Q}, \mathbf{R}$, and $\mathbf{S}$ is(are) :
The correct statement(s) about $\mathbf{P}, \mathbf{Q}, \mathbf{R}$, and $\mathbf{S}$ is(are) :
A.
$\mathbf{P}$ and $\mathbf{Q}$ are monomers of polymers dacron and glyptal, respectively.
B.
$\mathbf{P}, \mathbf{Q}$, and $\mathbf{R}$ are dicarboxylic acids.
C.
Compounds $\mathbf{Q}$ and $\mathbf{R}$ are the same.
D.
$\mathbf{R}$ does not undergo aldol condensation and $\mathbf{S}$ does not undergo Cannizzaro reaction.
2023
JEE Advanced
MSQ
JEE Advanced 2023 Paper 1 Online
In the following reactions, $\mathbf{P}, \mathbf{Q}, \mathbf{R}$, and $\mathbf{S}$ are the major products.
The correct statement(s) about $\mathbf{P}, \mathbf{Q}, \mathbf{R}$, and $\mathbf{S}$ is(are) :
The correct statement(s) about $\mathbf{P}, \mathbf{Q}, \mathbf{R}$, and $\mathbf{S}$ is(are) :
A.
Both $\mathbf{P}$ and $\mathbf{Q}$ have asymmetric carbon(s).
B.
Both $\mathbf{Q}$ and $\mathbf{R}$ have asymmetric carbon(s).
C.
Both $\mathbf{P}$ and $\mathbf{R}$ have asymmetric carbon(s).
D.
$\mathbf{P}$ has asymmetric carbon(s), $\mathbf{S}$ does not have any asymmetric carbon.
2022
JEE Advanced
MSQ
JEE Advanced 2022 Paper 1 Online
Considering the reaction sequence given below, the correct statement(s) is(are)
A.
$\mathbf{P}$ can be reduced to a primary alcohol using $\mathrm{NaBH}_{4}$.
B.
Treating $\mathbf{P}$ with conc. $\mathrm{NH}_{4} \mathrm{OH}$ solution followed by acidification gives $\mathbf{Q}$.
C.
Treating $\mathbf{Q}$ with a solution of $\mathrm{NaNO}_{2}$ in aq. $\mathrm{HCl}$ liberates $\mathrm{N}_{2}$.
D.
$\mathbf{P}$ is more acidic than $\mathrm{CH}_{3} \mathrm{CH}_{2} \mathrm{COOH}$.
2020
JEE Advanced
MSQ
JEE Advanced 2020 Paper 1 Offline
In the reaction scheme shown below Q, R and S are the major products.
The correct structure of
The correct structure of
A.
S is
B.
Q is
C.
R is
D.
S is
2019
JEE Advanced
MSQ
JEE Advanced 2019 Paper 2 Offline
Choose the correct option(s) for the following reaction sequence
Consider Q, R and S as major products.
Consider Q, R and S as major products.
A.
B.
C.
D.
2018
JEE Advanced
MSQ
JEE Advanced 2018 Paper 1 Offline
The reaction (s) leading to the formation of $1,3,5$-trimethylbenzene is (are)
A.
B.
C.
D.
2017
JEE Advanced
MSQ
JEE Advanced 2017 Paper 2 Offline
Compounds $P$ and $R$ upon ozonolysis produce $Q$ and $S,$ respectively. The molecular formula of $Q$ and $S$ is ${C_8}{H_8}O.Q$ undergoes Canninzzaro reaction but not haloform reaction, whereas $S$ undergoes haloform reaction but not Cannizzaro reaction
The option(s) with suitable combination of $P$ and $R,$ respectively, is (are)
The option(s) with suitable combination of $P$ and $R,$ respectively, is (are)
A.
B.
C.
D.
2016
JEE Advanced
MSQ
JEE Advanced 2016 Paper 2 Offline
Reagent(s) which can be used to bring about the following transformation is(are)
A.
LiAlH4 in (C2H5)2O
B.
BH3 in THF
C.
NaBH4 in C2H5OH
D.
Raney Ni/H2 in THF
2016
JEE Advanced
MSQ
JEE Advanced 2016 Paper 1 Offline
Positive Tollen’s test is observed for
A.
B.
C.
D.
2016
JEE Advanced
MSQ
JEE Advanced 2016 Paper 1 Offline
The correct statements about of the following reaction sequence is (are)
Cumene (C9H12) $\mathrel{\mathop{\kern0pt\longrightarrow}
\limits_{(ii)\,{H_3}{O^ + }}^{(i)\,{O_2}}} $ P $\mathrel{\mathop{\kern0pt\longrightarrow}
\limits_{}^{CHC{l_3}/NaOH}} $ Q (major) + R (minor)
Q $\mathrel{\mathop{\kern0pt\longrightarrow}
\limits_{PhC{H_2}Br}^{NaOH}} $ S
A.
R is steam volatile.
B.
Q gives dark violet coloration with 1% aqueous FeCl3 solution.
C.
S gives yellow precipitate with 2, 4-dinitrophenylhydrazine.
D.
S gives dark violet coloration with 1% aqueous FeCl3 solution.
2012
JEE Advanced
MSQ
IIT-JEE 2012 Paper 2 Offline
With reference to the scheme given, which of the given statement(s) about T, U, V and W is(are) correct?
A.
T is soluble in hot aqueous NaOH.
B.
U is optically active.
C.
Molecular formula of W is C10H18O4.
D.
V gives effervescence on treatment with aqueous NaHCO3.
2012
JEE Advanced
MSQ
IIT-JEE 2012 Paper 1 Offline
Identify the binary mixtures that can be separated into individual compounds, by differential extraction, as shown in the given scheme.
A.
C6H5OH and C6H5COOH
B.
C6H5COOH and C6H5CH2OH
C.
C6H5CH2OH and C6H5OH
D.
C6H5CH2OH and C6H5CH2COOH