Aldehydes, Ketones and Carboxylic Acids PYQs - Last 10 Years
JEE Main / Chemistry / Organic Chemistry / 256 recent questions
ChemistryOrganic Chemistry2017-2026
Practice 256 JEE Main Chemistry questions from Aldehydes, Ketones and Carboxylic Acids. Use the year-wise and type-wise breakdown to prioritize recent PYQs, then continue into the question list below.
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Last 10 Years Aldehydes, Ketones and Carboxylic Acids Questions
Showing 50 of 256 filtered questions.
1Aldehydes Ketones And Carboxylic Acids
Given below are two statements: One is labelled as Assertion A and the other is labelled as Reason R.
Assertion A: can be easily reduced using $\mathrm{Zn}-\mathrm{Hg} / \mathrm{HCl}$ to
Reason $\mathrm{R}: \mathrm{Zn}-\mathrm{Hg} / \math...
Assertion A: can be easily reduced using $\mathrm{Zn}-\mathrm{Hg} / \mathrm{HCl}$ to
Reason $\mathrm{R}: \mathrm{Zn}-\mathrm{Hg} / \math...
MCQ+4 / -12023
2Aldehydes Ketones And Carboxylic Acids
Find out the major products from the following reaction sequence.
MCQ+4 / -12023
3Aldehydes Ketones And Carboxylic Acids
Identify the product formed (A and E)
MCQ+4 / -12023
4Aldehydes Ketones And Carboxylic Acids
Number of compounds giving (i) red colouration with ceric ammonium nitrate and also (ii) positive iodoform test from the following is ___________
INTEGER+4 / -12023
5Aldehydes Ketones And Carboxylic Acids
'A' in the given reaction is
MCQ+4 / -12023
6Aldehydes Ketones And Carboxylic Acids
Compound (X) undergoes following sequence of reactions to give the Lactone (Y).
MCQ+4 / -12023
7Aldehydes Ketones And Carboxylic Acids
'R' formed in the following sequence of reactions is :
MCQ+4 / -12023
8Aldehydes Ketones And Carboxylic Acids
Number of isomeric compounds with molecular formula \(\mathrm{C}_{9} \mathrm{H}_{10} \mathrm{O}\) which (i) do not dissolve in \(\mathrm{NaOH}\) (ii) do not dissolve in \(\mathrm{HCl}\). (iii) do not give orange precipitate with 2,4-DNP (iv...
INTEGER+4 / -12023
9Aldehydes Ketones And Carboxylic Acids
The structures of major products A, B and C in the following reaction are sequence.
MCQ+4 / -12023
10Aldehydes Ketones And Carboxylic Acids
In a reaction,
reagents 'X' and 'Y' respectively are :
reagents 'X' and 'Y' respectively are :
MCQ+4 / -12023
11Aldehydes Ketones And Carboxylic Acids
In the above conversion the correct sequence of reagents to be added is
MCQ+4 / -12023
12Aldehydes Ketones And Carboxylic Acids
In the reaction given below
'A' is
'A' is
MCQ+4 / -12023
13Aldehydes Ketones And Carboxylic Acids
The mass of NH\(_3\) produced when 131.8 kg of cyclohexanecarbaldehyde undergoes Tollen's test is ________ kg. (Nearest Integer)
Molar Mass of
C = 12g/mol
N = 14g/mol
O = 16g/mol
Molar Mass of
C = 12g/mol
N = 14g/mol
O = 16g/mol
INTEGER+4 / -12023
14Aldehydes Ketones And Carboxylic Acids
The value of \(x\) in compound 'D' is _________.
INTEGER+4 / -12023
15Aldehydes Ketones And Carboxylic Acids
The major product 'P' formed in the following sequence of reactions is
MCQ+4 / -12023
16Aldehydes Ketones And Carboxylic Acids
In the following reaction
'A' is
'A' is
MCQ+4 / -12023
17Aldehydes Ketones And Carboxylic Acids
'A' in the above reaction is:
MCQ+4 / -12023
18Aldehydes Ketones And Carboxylic Acids
The two products formed in above reaction are -
MCQ+4 / -12023
19Aldehydes Ketones And Carboxylic Acids
'A' and 'B' in the above reactions are:
MCQ+4 / -12023
20Aldehydes Ketones And Carboxylic Acids
Given below are two statements, one is labelled as Assertion A and the other is labelled as Reason R.
Assertion A : A solution of the product obtained by heating a mole of glycine with a mole of chlorine in presence of red phosphorous gener...
Assertion A : A solution of the product obtained by heating a mole of glycine with a mole of chlorine in presence of red phosphorous gener...
MCQ+4 / -12023
21Aldehydes Ketones And Carboxylic Acids
The major product 'P' formed in the given reaction is
MCQ+4 / -12023
22Aldehydes Ketones And Carboxylic Acids
A hydrocarbon 'X' is found to have molar mass of 80. A 10.0 mg of compound 'X' on hydrogenation consumed 8.40 mL of H2 gas (measured at STP). Ozonolysis of compound 'X' yields only formaldehyde and dialdehyde. The total number of fragments/...
INTEGER+4 / -12022
23Aldehydes Ketones And Carboxylic Acids
Which among the following will be the major product of the given reaction?
MCQ+4 / -12022
24Aldehydes Ketones And Carboxylic Acids
Choose the reaction which is not possible:
MCQ+4 / -12022
25Aldehydes Ketones And Carboxylic Acids
Consider the given chemical reaction
Identify the product P.
Identify the product P.
MCQ+4 / -12022
26Aldehydes Ketones And Carboxylic Acids
Given below are two statements :
Statement I : The esterification of carboxylic acid with an alcohol is a nucleophilic acyl substitution.
Statement II : Electron withdrawing groups in the carboxylic acid will increase the rate of esterifica...
Statement I : The esterification of carboxylic acid with an alcohol is a nucleophilic acyl substitution.
Statement II : Electron withdrawing groups in the carboxylic acid will increase the rate of esterifica...
MCQ+4 / -12022
27Aldehydes Ketones And Carboxylic Acids
In the given reaction,
The number of \(\pi\) electrons present in the product 'P' is _________.
The number of \(\pi\) electrons present in the product 'P' is _________.
INTEGER+4 / -12022
28Aldehydes Ketones And Carboxylic Acids
Consider the above reaction sequence, the Product 'C' is :
MCQ+4 / -12022
29Aldehydes Ketones And Carboxylic Acids
The number of stereoisomers formed in a reaction of \((±)\mathrm{Ph}(\mathrm{C}=\mathrm{O}) \mathrm{C}(\mathrm{OH})(\mathrm{CN}) \mathrm{Ph}\) with \(\mathrm{HCN}\) is ___________.
\(\left[\right.\)where \(\mathrm{Ph}\) is $$-\mathrm{C}_{6}...
\(\left[\right.\)where \(\mathrm{Ph}\) is $$-\mathrm{C}_{6}...
INTEGER+4 / -12022
30Aldehydes Ketones And Carboxylic Acids
Correct structure of \(\gamma\)-methylcyclohexane carbaldehyde is
MCQ+4 / -12022
31Aldehydes Ketones And Carboxylic Acids
The correct structure of product 'A' formed in the following reaction.
is
is
MCQ+4 / -12022
32Aldehydes Ketones And Carboxylic Acids
Isobutyraldehyde on reaction with formaldehyde and K2CO3 gives compound 'A'. Compound 'A' reacts with KCN and yields compound 'B', which on hydrolysis gives a stable compound 'C'. The compound 'C' is
MCQ+4 / -12022
33Aldehydes Ketones And Carboxylic Acids
Find out the major product for the above reaction.
MCQ+4 / -12022
34Aldehydes Ketones And Carboxylic Acids
Which of the following reactions will yield benzaldehyde as a product?
MCQ+4 / -12022
35Aldehydes Ketones And Carboxylic Acids
'A' and 'B' respectively are:
MCQ+4 / -12022
36Aldehydes Ketones And Carboxylic Acids
The spin only magnetic moment of the complex present in Fehling's reagent is __________ B.M. (Nearest integer).
INTEGER+4 / -12022
37Aldehydes Ketones And Carboxylic Acids
Match List - I with List - II.
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overflow:hidden;padding:10px 5px;word-break:norm...
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.tg td{border-color:black;border-style:solid;border-width:1px;font-family:Arial, sans-serif;font-size:14px;
overflow:hidden;padding:10px 5px;word-break:norm...
MCQ+4 / -12022
38Aldehydes Ketones And Carboxylic Acids
The structure of A in the given reaction is :
MCQ+4 / -12022
39Aldehydes Ketones And Carboxylic Acids
Which will have the highest enol content?
MCQ+4 / -12022
40Aldehydes Ketones And Carboxylic Acids
(C7H5O2)2 \(\buildrel {hv} \over
\longrightarrow\) [X] \(\to\) 2C6H5 + 2CO2
Consider the above reaction and identify the intermediate 'X'
Consider the above reaction and identify the intermediate 'X'
MCQ+4 / -12022
41Aldehydes Ketones And Carboxylic Acids
The final product 'A' in the following reaction sequence
MCQ+4 / -12022
42Aldehydes Ketones And Carboxylic Acids
The reagent, from the following, which converts benzoic acid to benzaldehyde in one step is
MCQ+4 / -12022
43Aldehydes Ketones And Carboxylic Acids
Oxidation of toluene to benzaldehyde can be easily carried out with which of the following reagents?
MCQ+4 / -12022
44Aldehydes Ketones And Carboxylic Acids
The products formed in the following reaction, A and B are
MCQ+4 / -12022
45Aldehydes Ketones And Carboxylic Acids
Consider the above reaction and predict the major product.
MCQ+4 / -12022
46Aldehydes Ketones And Carboxylic Acids
Which of the following conditions or reaction sequence will NOT give acetophenone as the major product?
MCQ+4 / -12022
47Aldehydes Ketones And Carboxylic Acids
In the given reaction
The number of chiral carbon/s in product A is ___________.
The number of chiral carbon/s in product A is ___________.
INTEGER+4 / -12022
48Aldehydes Ketones And Carboxylic Acids
Which one of the following reactions does not represent correct combination of substrate and product under the given conditions?
MCQ+4 / -12022
49Aldehydes Ketones And Carboxylic Acids
\(C{H_3} - C{H_2} - CN\mathrel{\mathop{\kern0pt\longrightarrow}
\limits_{Ether}^{C{H_3}MgBr}} A\buildrel {{H_3}{O^ + }} \over
\longrightarrow B\mathrel{\mathop{\kern0pt\longrightarrow}
\limits_{HCl}^{Zn - Hg}} C\)
The correct structure of ...
The correct structure of ...
MCQ+4 / -12022
50Aldehydes Ketones And Carboxylic Acids
What is the major product of the following reaction?
MCQ+4 / -12022