Question 1: Palette 1/69

JEE Advanced 2026 MCQ

Natural rubber on complete ozonolysis $\left(\mathrm{O}_3 / \mathrm{Zn}-\mathrm{H}_2 \mathrm{O}\right)$ gives compound $\mathbf{X}$ as the major product. $\mathbf{X}$ gives positive iodoform and Tollen's tests. $\mathbf{X}$ on heating with aqueous NaOH gives $\mathbf{Y}$ as the major product. $\mathbf{Y}$ is

A

B

C

D

Question 2: Palette 2/69

JEE Advanced 2026 MCQ

Considering LiBH₄ reduces an ester group to the corresponding alcohol and does not reduce a carboxylic acid group, the correct statement about the major products P, Q, R and S is:

A

P & Q are identical, and R & S are diastereomers.

B

P & Q are diastereomers, and R & S are identical.

C

P & Q are diastereomers, and R & S are diastereomers.

D

P & Q are identical, and R & S are identical.

Question 3: Palette 3/69

JEE Advanced 2026 MCQ

The List-II contains products obtained from the reaction of compounds in List-I with $O_3$/Zn-$H_2O$ followed by cyclization (via more stable enolate) in the presence of aqueous NaOH. Match each entry in List-I with appropriate entry in List-II and choose the correct option.

List-I	List-II
(P)	(1)
(Q)	(2)
(R)	(3)
(S)	(4)
	(5)

A

P $\rightarrow$ 2; Q $\rightarrow$ 4; R $\rightarrow$ 1; S $\rightarrow$ 3

B

P $\rightarrow$ 3; Q $\rightarrow$ 4; R $\rightarrow$ 5; S $\rightarrow$ 2

C

P $\rightarrow$ 2; Q $\rightarrow$ 1; R $\rightarrow$ 5; S $\rightarrow$ 3

D

P $\rightarrow$ 3; Q $\rightarrow$ 5; R $\rightarrow$ 4; S $\rightarrow$ 2

Question 4: Palette 4/69

JEE Advanced 2026 MCQ

Match the major products obtained in the reactions given in List-I with the corresponding structures in List-II and choose the correct option.

List-I	List-II
(P)	(1)
(Q)	(2)
(R)	(3)
(S)	(4)
	(5)

A

P $\rightarrow$ 2; Q $\rightarrow$ 1; R $\rightarrow$ 5; S $\rightarrow$ 4

B

P $\rightarrow$ 1; Q $\rightarrow$ 2; R $\rightarrow$ 4; S $\rightarrow$ 5

C

P $\rightarrow$ 1; Q $\rightarrow$ 2; R $\rightarrow$ 3; S $\rightarrow$ 4

D

P $\rightarrow$ 2; Q $\rightarrow$ 1; R $\rightarrow$ 3; S $\rightarrow$ 5

Question 5: Palette 5/69

JEE Advanced 2026 MSQ

In the following reaction sequence, Q, R, S and T are the major products.

The correct statement(s) about Q, R, S and T is(are) :

A

S on warming with ammoniacal AgNO₃ results in the formation of silver mirror.

B

Q on treatment with Cl₂(excess)/UV gives gammaxane.

C

T is a heterocyclic compound.

D

R on acid catalyzed intramolecular cyclization followed by treatment with Zn-Hg/HCl gives 9,10-dihydroxyanthracene.

Question 6: Palette 6/69

JEE Advanced 2025 MCQ

Monocyclic compounds $\mathbf{P}, \mathbf{Q}, \mathbf{R}$ and $\mathbf{S}$ are the major products formed in the reaction sequences given below.

The product having the highest number of unsaturated carbon atom(s) is :

A

P

B

Q

C

R

D

S

Question 7: Palette 7/69

JEE Advanced 2024 MCQ

In the following reaction sequence, the major product $\mathbf{Q}$ is

A

B

C

D

Question 8: Palette 8/69

JEE Advanced 2024 MCQ

List-I contains various reaction sequences and List-II contains the possible products. Match each entry in List-I with the appropriate entry in List-II and choose the correct option.

List-I	List-II

A

P-3, Q-5, R-4, S-1

B

P-3, Q-2, R-4, S-1

C

P-3, Q-5, R-1, S-4

D

P-5, Q-2, R-4, S-1

Question 9: Palette 9/69

JEE Advanced 2023 MCQ

The major products obtained from the reactions in List-II are the reactants for the named reactions mentioned in List-I. Match List-I with List-II and choose the correct option.

List - I	List - II
(P) Etard reaction	(1) Acetophenone $\stackrel{\mathrm{Zn}-\mathrm{Hg}, \mathrm{HCl}}{\longrightarrow}$
(Q) Gattermann reaction	(2) $ \text { Toluene } \underset{\text { (ii) } \mathrm{SOCl}_2}{\stackrel{\text { (i) } \mathrm{KMnO}_4, \mathrm{KOH}, \Delta}{\longrightarrow}} $
(R) Gattermann-Koch reaction	(3) $ \text { Benzene } \underset{\text { anhyd. } \mathrm{AlCl}_3}{\stackrel{\mathrm{CH}_3 \mathrm{Cl}}{\longrightarrow}} $
(S) Rosenmund reduction	(4) $ \text { Aniline } \underset{273-278 \mathrm{~K}}{\stackrel{\mathrm{NaNO}_2 / \mathrm{HCl}}{\longrightarrow}} $
	(5) $ \text { Phenol } \stackrel{\mathrm{Zn}, \Delta}{\longrightarrow} $

A

$ \mathrm{P} \rightarrow 2 ; \mathrm{Q} \rightarrow 4 ; \mathrm{R} \rightarrow 1 ; \mathrm{S} \rightarrow 3 $

B

$ \mathrm{P} \rightarrow 1 ; \mathrm{Q} \rightarrow 3 ; \mathrm{R} \rightarrow 5 ; \mathrm{S} \rightarrow 2 $

C

$ \mathrm{P} \rightarrow 3 ; \mathrm{Q} \rightarrow 2 ; \mathrm{R} \rightarrow 1 ; \mathrm{S} \rightarrow 4 $

D

$ \mathrm{P} \rightarrow 3 ; \mathrm{Q} \rightarrow 4 ; \mathrm{R} \rightarrow 5 ; \mathrm{S} \rightarrow 2 $

Question 10: Palette 10/69

JEE Advanced 2023 MSQ

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) :

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.

Question 11: Palette 11/69

JEE Advanced 2023 MSQ

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) :

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.

Question 12: Palette 12/69

JEE Advanced 2022 MSQ

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 $\mathrm{CH}_{3} \mathrm{CH}_{2} \mathrm{COOH}$.

Question 13: Palette 13/69

JEE Advanced 2020 MSQ

In the reaction scheme shown below Q, R and S are the major products.



The correct structure of

A

S is

B

Q is

C

R is

D

S is

Question 14: Palette 14/69

JEE Advanced 2019 MCQ

Which of the following options has correct combination considering List-I and List-II?

A

(III), (S) (R)

B

(IV), (Q), (R)

C

(III), (T), (U)

D

(IV), (Q), (U)

Question 15: Palette 15/69

JEE Advanced 2019 MCQ

Which of the following options has correct combination considering List-I and List-II?

A

(II), (P), (S), (U)

B

(I), (Q), (T), (U)

C

(II), (P), (S), (T)

D

(I), (S), (Q), (R)

Question 16: Palette 16/69

JEE Advanced 2019 MCQ

The correct order of acid strength of the following carboxylic acids is

A

III > II > I > IV

B

I > II > III > IV

C

II > I > IV > III

D

I > III > II > IV

Question 17: Palette 17/69

JEE Advanced 2019 MSQ

Choose the correct option(s) for the following reaction sequence


Consider Q, R and S as major products.

A

B

C

D

Question 18: Palette 18/69

JEE Advanced 2018 MCQ

The desired product $X$ can be prepared by reacting the major product of the reactions in LIST-I with one or more appropriate reagents in LIST-II (given, order of migratory aptitude: aryl > alkyl > hydrogen)


The correct option is

A

$P - 1;Q - 2,3;R - 1,4;S - 2,4$

B

$P - 1,5;Q - 3,4;R - 4,5;S - 3$

C

$P - 1,5;Q - 3,4;R - 5;S - 2,4$

D

$P - 1,5;Q - 2,3;R - 1,5;S - 2,3$

Question 19: Palette 19/69

JEE Advanced 2018 MCQ

An organic acid P $\left( {{C_{11}}{H_{12}}{O_2}} \right)$ can easily be oxidized to a dibasic acid which reacts with ethylene glycol to produce a polymer dacron. Upon ozonolysis, P gives an aliphatic ketone as one of the products. P undergoes the following reaction sequences to furnish R via Q. The compound P also undergoes another set of reactions to produce S.



The compound S is

A

B

C

D

Question 20: Palette 20/69

JEE Advanced 2018 MCQ

The compound $Y$ is

A

B

C

D

Question 21: Palette 21/69

JEE Advanced 2018 MCQ

The compound $Z$ is

A

B

C

D

Question 22: Palette 22/69

JEE Advanced 2018 MCQ

An organic acid P $\left( {{C_{11}}{H_{12}}{O_2}} \right)$ can easily be oxidized to a dibasic acid which reacts with ethylene glycol to produce a polymer dacron. Upon ozonolysis, P gives an aliphatic ketone as one of the products. P undergoes the following reaction sequences to furnish R via Q. The compound P also undergoes another set of reactions to produce S.



The compound R is

A

B

C

D

Question 23: Palette 23/69

JEE Advanced 2018 MSQ

The reaction (s) leading to the formation of $1,3,5$-trimethylbenzene is (are)

A

B

C

D

Question 24: Palette 24/69

JEE Advanced 2017 MCQ

The reactions, $Q$ to $R$ and $R$ to $S,$ are

A

Dehydration and Friedel$-$Crafts acylation

B

Aromatic sulfonation and Friedel$-$Crafts acylation

C

Friedel$-$Crafts alkylation, dehydration and Friedel$-$Crafts acylation

D

Friedel$-$Crafts alkylation and Friedel$-$Crafts acylation

Question 25: Palette 25/69

JEE Advanced 2017 MCQ

The product $S$ is

A

B

C

D

Question 26: Palette 26/69

JEE Advanced 2017 MCQ

For the synthesis of benzoic acid, the only CORRECT combination is

A

(II) (i) (S)

B

(IV) (ii) (P)

C

(I) (iv) (Q)

D

(III) (iv) (R)

Question 27: Palette 27/69

JEE Advanced 2017 MCQ

The only CORRECT combination in which the reaction proceeds through radical mechanism is :

A

(III) (ii) (P)

B

(IV) (i) (Q)

C

(II) (iii) (R)

D

(I) (ii) (R)

Question 28: Palette 28/69

JEE Advanced 2017 MCQ

The only CORRECT combination that gives two different carboxylic acids is :

A

(II) (iv) (R)

B

(IV) (iii) (Q)

C

(III) (iii) (P)

D

(I) (i) (S)

Question 29: Palette 29/69

JEE Advanced 2017 MSQ

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)

A

B

C

D

Question 30: Palette 30/69

JEE Advanced 2016 MCQ

The correct order of acidity for the following compounds is

A

I > II > III > IV

B

III > I > II > IV

C

III > IV > II > I

D

I > III > IV > II

Question 31: Palette 31/69

JEE Advanced 2016 MCQ

The major product of the following reaction sequence is:

A

B

C

D

Question 32: Palette 32/69

JEE Advanced 2016 MSQ

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

Question 33: Palette 33/69

JEE Advanced 2016 MSQ

Positive Tollen’s test is observed for

A

B

C

D

Question 34: Palette 34/69

JEE Advanced 2016 MSQ

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.

Question 35: Palette 35/69

JEE Advanced 2015 MCQ

In the following reactions

Compound X is

A

B

C

D

Question 36: Palette 36/69

JEE Advanced 2015 MCQ

In the following reactions

The major compound Y is

A

B

C

D

Question 37: Palette 37/69

JEE Advanced 2015 MCQ

The major product of the following reaction is

A

B

C

D

Question 38: Palette 38/69

JEE Advanced 2014 MCQ

The major product in the following reaction is

A

B

C

D

Question 39: Palette 39/69

JEE Advanced 2014 MCQ

Different possible thermal decomposition pathways for peroxyesters are shown below. Match each pathway from List I with an appropriate structure from List II and select the correct answer using the code given below the lists.

A

P-1, Q-3, R-4, S-2

B

P-2, Q-4, R-3, S-1

C

P-4, Q-1, R-2, S-3

D

P-3, Q-2, R-1, S-4

Question 40: Palette 40/69

JEE Advanced 2013 MCQ

Compounds formed from P and Q are, respectively,

A

Optically active S and optically active pair (T, U).

B

Optically inactive S and optically inactive pair (T, U).

C

Optically active pair (T, U) and optically active S.

D

Optically inactive pair (T, U) and optically inactive S.

Question 41: Palette 41/69

JEE Advanced 2013 MCQ

In the following reaction sequences V and W are, respectively,

A

B

C

D

Question 42: Palette 42/69

JEE Advanced 2013 MCQ

After completion of the reactions (I and II), the organic compound(s) in the reaction mixtures is(are)

A

Reaction I : P and Reaction II : P

B

Reaction I : U, acetone and Reaction II : Q, acetone

C

Reaction I : T, U, acetone and Reaction II : P

D

Reaction I : R, acetone and Reaction II : S, acetone

Question 43: Palette 43/69

JEE Advanced 2012 MCQ

The major product H of the given reaction sequence is

$C{H_3} - C{H_2} - CO - C{H_3}\buildrel {\overline C N} \over \longrightarrow G\mathrel{\mathop{\kern0pt\longrightarrow} \limits_{Heat}^{95\% \,{H_2}S{O_4}}} H$

A

B

C

D

Question 44: Palette 44/69

JEE Advanced 2012 MCQ

The compound that undergoes decarboxylation most readily under mild condition is

A

B

C

D

Question 45: Palette 45/69

JEE Advanced 2012 MCQ

The compound I is

A

B

C

D

Question 46: Palette 46/69

JEE Advanced 2012 MCQ

The compound K is

A

B

C

D

Question 47: Palette 47/69

JEE Advanced 2012 MCQ

The carboxyl functional group ($-$COOH) is present in

A

picric acid

B

barbituric acid

C

ascorbic acid

D

aspirin

Question 48: Palette 48/69

JEE Advanced 2012 MCQ

The number of aldol reactions that occur in the given transformation are

A

1

B

2

C

3

D

4

Question 49: Palette 49/69

JEE Advanced 2012 MCQ

The number of optically active products obtained from the complete ozonolysis of the given compound is ______.

A

0

B

1

C

2

D

4

Question 50: Palette 50/69

JEE Advanced 2012 MSQ

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.

Question 51: Palette 51/69

JEE Advanced 2012 MSQ

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

Question 52: Palette 52/69

JEE Advanced 2011 MCQ

The structure of compound P is

A

CH₃CH₂CH₂CH₂ $-$ C $\equiv$ C $-$ H

B

H₃CH₂C $-$ C $\equiv$ C $-$ CH₂CH₃

C

D

Question 53: Palette 53/69

JEE Advanced 2011 MCQ

The structure of the compound Q is

A

B

C

D

Question 54: Palette 54/69

JEE Advanced 2010 MCQ

The compounds P and Q respectively are :

A

B

C

D

Question 55: Palette 55/69

JEE Advanced 2010 MCQ

The compound R is :

A

B

C

D

Question 56: Palette 56/69

JEE Advanced 2010 MCQ

The compound S is :

A

B

C

D

Question 57: Palette 57/69

JEE Advanced 2009 MCQ

Match each of the compounds given in Column I with the reaction(s), that they can undergo, given in Column II.

	Column I		Column II
(A)		(P)	Nucleophilic substitution
(B)		(Q)	Elimination
(C)		(R)	Nucleophilic addition
(D)		(S)	Esterification with acetic anhydride
		(T)	Dehydrogenation

A

(A)$\to$ (Q), (T); (B)$\to$(P), (Q), (T); (C)$\to$(P), (S); (D)$\to$(P)

B

(A)$\to$(P), (T); (B)$\to$ (S), (T); (C)$\to$(R), (S); (D)$\to$(S)

C

(A)$\to$(S), (Q), (T); (B)$\to$(P), (Q), (T); (C)$\to$(R), (S); (D)$\to$(T)

D

(A)$\to$(P), (Q), (T); (B)$\to$(P), (S), (T); (C)$\to$(R), (S); (D)$\to$(P)

Question 58: Palette 58/69

JEE Advanced 2009 MCQ

The structure of the carbonyl compound P is

A

B

C

D

Question 59: Palette 59/69

JEE Advanced 2009 MCQ

The structures of the products Q and R, respectively, are

A

B

C

D

Question 60: Palette 60/69

JEE Advanced 2009 MCQ

The structure of the product S is

A

B

C

D

Question 61: Palette 61/69

JEE Advanced 2008 MCQ

In the following reaction sequence, the correct structure of E, F and G are :

A

B

C

D

Question 62: Palette 62/69

JEE Advanced 2008 MCQ

The structure of the product I is :

A

B

C

D

Question 63: Palette 63/69

JEE Advanced 2008 MCQ

The structure of compounds J and K, respectively, are:

A

B

C

D

Question 64: Palette 64/69

JEE Advanced 2008 MCQ

The structure of product L is :

A

B

C

D

Question 65: Palette 65/69

JEE Advanced 2007 MCQ

Cyclohexene on ozonolysis followed by reaction with zinc dust and water gives compound E. Compound E on further treatment with aqueous KOH yields compound F. Compound F is :

A

B

C

D

Question 66: Palette 66/69

JEE Advanced 2007 MCQ

Match the compounds/ions in Column I with their properties/reactions in Column II. Indicate your answer by darkening the appropriate bubbles of the 4 $\times$ 4 matrix given in the ORS.

	Column I		Column II
(A)	$\mathrm{C_6H_5CHO}$	(P)	gives precipitate with 2, 4-dinitrophenylhydrazine
(B)	$\mathrm{CH_3C\equiv CH}$	(Q)	gives precipitate with $\mathrm{AgNO_3}$
(C)	$\mathrm{CN^-}$	(R)	is a nucleophile
(D)	$\mathrm{I^-}$	(S)	is involved in cyanohydrin formation

A

$\mathrm{A-(p,s);B-(q);C-(r,s);D-(q)}$

B

$\mathrm{A-(p,s);B-(q);C-(q,r,s);D-(q,r)}$

C

$\mathrm{A-(s);B-(q);C-(q,r,s);D-(q)}$

D

$\mathrm{A-(p);B-(q);C-(s);D-(r)}$

Question 67: Palette 67/69

JEE Advanced 2007 MCQ

Statement 1 : p-Hydroxybenzoic acid has a lower boiling point than o-hydroxybenzoic acid.

Statement 2 : o-Hydroxybenzoic acid has intramolecular hydrogen bonding.

A

Statement 1 is True, Statement 2 is True, Statement 2 is a CORRECT explanation for Statement 1

B

Statement 1 is True, Statement 2 is True, Statement 2 is NOT a CORRECT explanation for Statement 1

C

Statement 1 is True, Statement 2 is False

D

Statement 1 is False, Statement 2 is True

Question 68: Palette 68/69

JEE Advanced 2006 MCQ

Which of the following reactants on reaction with conc. NaOH followed by acidification gives the following lactone as the only product?

A

B

C

D

Question 69: Palette 69/69

JEE Advanced 2006 MCQ

The smallest ketone and its next homologue are reacted with $\mathrm{NH}_2 \mathrm{OH}$ to form oxime.

A

Two different oximes are formed.

B

Three different oximes are formed.

C

Two oximes are optically active.

D

All oximes are optically active.