jee main chemistry important questions | Aldehydes, Ketones And Carboxylic Acids jee main questions FREE

Q 1 :

In the Claisen-Schmidt reaction to prepare 351 g of dibenzalacetone using 87 g of acetone, the amount of benzaldehyde required is _______ g. (Nearest integer) [2024]

(318)

The condensation of an aromatic aldehyde (without $α$ hydrogen) with an aliphatic aldehyde or ketone (having $α$ hydrogen) in the presence of a strong base (hydroxide or alkoxide) to give $α$ , $β$ unsaturated aldehydes or ketones is called Claisen-Schmidt condensation reaction.

$Moles of dibenzalacetone = \frac{Mass of dibenzalacetone}{molar mass}$

$= \frac{351}{234} mol = 1.5 mol$

By stoichiometry of reaction, moles of benzaldehyde = 2 $\times$ moles of dibenzalacetone = 2 $\times$ 1.5 = 3mol.

Mass of benzaldehyde = moles of benzaldehyde $\times$ molar mass of benzaldehyde = 3mol $\times$ 106 ${gmol}^{- 1}$ = 318 g

Q 2 :

The final product A, formed in the following multistep reaction sequence is: [2024]

1

2

3

4

(2)

Q 3 :

The product of the following reaction is P. [2024]

The number of hydroxyl groups present in the product P is ______.

(0)

Q 4 :

Major product B of the following reaction has ___________ $π$ -bond. [2024]

(5)

Q 5 :

$1, 2 - dibromocyclooctane \to_{\begin{matrix} {(ii) NaNH}_{2} \\ {(iii) Hg}^{2 +} / H^{+} \\ {(iv) Zn-Hg/H}^{+} \end{matrix}}^{(i) KOH(alc.)} \underset{(Major Product)}{P}$

'P' is [2025]

1

2

3

4

(2)

Q 6 :

An organic compound (X) with molecular formula $C_{3} H_{6} O$ is not readily oxidised. On reduction it gives $C_{3} H_{8} O$ (Y) which reacts with HBr to give a bromide (Z) which is converted to Grignard reagent. This Grignard reagent on reaction with (X) followed by hydrolysis gives 2,3-dimethylbutan-2-ol.

Compounds (X), (Y) and (Z) respectively are: [2025]

${CH}_{3} {COCH}_{3}, {CH}_{3} {CH}_{2} {CH}_{2} OH, {CH}_{3} CH (Br) {CH}_{3}$
${CH}_{3} {COCH}_{3}, {CH}_{3} CH (OH) {CH}_{3}, {CH}_{3} CH (Br) {CH}_{3}$
${CH}_{3} {CH}_{2} CHO, {CH}_{3} {CH}_{2} {CH}_{2} OH, {CH}_{3} {CH}_{2} {CH}_{2} Br$
${CH}_{3} {CH}_{2} CHO, {CH}_{3} CH = {CH}_{2}, {CH}_{3} CH (Br) {CH}_{2}$

1

2

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4

(2)

Q 7 :

Consider the following reactions. From these reactions which reaction will give carboxylic acid as a major product?

Choose the correct answer from the options given below: [2025]

A and D only
A, B and E only
B, C and E only
B and E only

1

2

3

4

(4)

Q 8 :

An optically active alkyl halide $C_{4} H_{9} Br$ [A] reacts with hot KOH dissolved in ethanol and forms alkene [B] as major product which reacts with bromine to give dibromide [C]. The compound [C] is converted into a gas [D] upon reacting with alcoholic ${NaNH}_{2}$ . During hydration 18 gram of water is added to 1 mole of gas [D] on warming with mercuric sulphate and dilute acid at 333 K to form compound [E].

The IUPAC name of compound [E] is: [2025]

But-2-yne
Butan-2-ol
Butan-2-one
Butan-1-al

1

2

3

4

(3)

Out of four possible isomers of $C_{4} H_{9} Br$ , only one is optically active, so this gives us structure of [A].

Q 9 :

The product (A) formed in the following reaction sequence is

${CH}_{3} - C \equiv CH \to_{{(iii) H}_{2} / Ni}^{\begin{matrix} {(i) Hg}^{2 +} {,H}_{2} {SO}_{4} \\ (ii) HCN \end{matrix}} \underset{Product}{(A)}$ [2025]

1

2

3

4

(3)

Q 10 :

0.1 mole of compound ‘S’ will weigh _____ g.

(Given molar mass in g ${mol}^{- 1}$ C : 12, H : 1, O : 16) [2025]

(13)

Mass of 0.1 mol S = 0.1 × molar mass of S = 0.1 × 130 g = 13 g

Q 11 :

In the Claisen-Schmidt reaction to prepare dibenzalacetone from 5.3 g of benzaldehyde, a total of 3.51 g of product was obtained. The percentage yield in this reaction was _____%. [2025]

(60)

Moles of benzaldehyde initially taken $(n_{C_{6} H_{5} C H O})$

$= \frac{Mass of C_{6} H_{5} C H O}{Molar mass of C_{6} H_{5} C H O} = \frac{5.3}{106} = 0.05 mol$

For 100% yield of the reaction, 2 mol of benzaldehyde give 1 mol of dibenzalacetone, so 0.05 mol of benzaldehyde give 0.025 mol of dibenzalacetone.

Actual moles of dibenzalacetone obtained

$= \frac{Mass of dibenzalacetone obtained}{Molar mass of dibenzalacetone} = \frac{3.51}{234} = 0.015 mol$

Percentage yield

$= \frac{Actual moles of dibenzalacetone obtained}{Moles of dibenzalacetone for 100% yield} \times 100$

$= \frac{0.015}{0.025} \times 100 = 60 %$

Q 12 :

Identify the structure of the final product (D) in the following sequence of the reactions:

Total number of $s p^{2}$ hybridised carbon atoms in product D is _____. [2025]

(7)

Q 13 :

Match List I with List II [2023]

List I List II

Reaction Reagents

A. Hoffmann Degradation I. Conc. KOH, $Δ$

B. Clemmensen reduction II. ${CHCl}_{3}, NaOH / H_{3} O^{\oplus}$

C. Cannizzaro reaction III. ${Br}_{2}$ , NaOH

D. Reimer–Tiemann Reaction IV. Zn–Hg / HCl

Choose the correct answer from the options given below:

(A) – III, (B) – IV, (C) – II, (D) – I
(A) – III, (B) – IV, (C) – I, (D) – II
(A) – II, (B) – IV, (C) – I, (D) – III
(A) – II, (B) – I, (C) – III, (D) – IV

1

2

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(2)

Q 14 :

Match List I with List II [2023]

List I List II

Name of reaction Reagent used

A. Hell–Volhard–Zelinsky reaction I. $NaOH + I_{2}$

B. Iodoform reaction II. ${(i) CrO}_{2} {Cl}_{2}, {CS}_{2}$ ${(ii) H}_{2} O$

C. Etard reaction III. ${(i) Br}_{2} / red phosphorus$ ${(ii) H}_{2} O$

D. Gattermann–Koch reaction IV. $CO, HCl, {anhyd. AlCl}_{3}$

Choose the correct answer from the options given below:

A–III, B–I, C–II, D–IV
A–I, B–II, C–III, D–IV
A–III, B–I, C–IV, D–II
A–III, B–II, C–I, D–IV

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(1)

Q 15 :

$‘ x ’$ is the product which is obtained from propanenitrile and stannous chloride in the presence of hydrochloric acid followed by hydrolysis. $‘ y ’$ is the product which is obtained from the but-2-ene by the ozonolysis followed by hydrolysis. From the following, which product is not obtained when one mole of $‘ x ’$ and one mole of $‘ y ’$ react with each other in the presence of alkali followed by heating? [2026]

2-Methylbut-2-enal
Pent-2-enal
2-Methylpent-2-enal
3-Methylbut-2-enal

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(4)

Q 16 :

The correct sequence of reagents for the above conversion of X to Y is: [2026]

(i) Jones reagent (ii) NaOEt (iii) Hot ${KMnO}_{4}$ / KOH
(i) $B_{2} H_{6} / H_{2} O_{2}$ (ii) NaOEt (iii) Jones reagent
(i) NaOH (aq) (ii) Jones reagent (iii) $H_{3} O^{+}$
(i) NaOEt (ii) $B_{2} H_{6} / H_{2} O_{2}$ (iii) Jones reagent

1

2

3

4

(4)

Q 17 :

Consider the following two reactions A and B.

Numerical value of [molar mass of $x +$ molar mass of $y$ ] is ______. [2026]

88
160
4
46

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3

4

(4)

$x = H_{2} (gas), y = {CO}_{2} (gas)$

$Sum of molar mass = 2 + 44 = 46$

Q 18 :

Which of the following statements are TRUE about Haloform reaction?

A. Sodium hypochlorite reacts with KI to give KOI.
B. KOI is a reducing agent.
C. $α, β -$ unsaturated methylketone will give iodoform reaction.
D. Isopropyl alcohol will not give iodoform test.
E. Methanoic acid will give positive iodoform test.

Choose the correct answer from the options given below: [2026]

A, B & C Only
A, C & E Only
A & C Only
B, D & E Only

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(3)

(A) NaOCl + KI → NaCl + KOI
(B) Incorrect statement

(C) gives iodoform reaction.
(D) Incorrect statement
(E) Incorrect statement

Q 19 :

Iodoform test can differentiate between

A. Methanol and Ethanol
B. ${CH}_{3} COOH and {CH}_{3} {CH}_{2} COOH$
C. Cyclohexene and cyclohexanone
D. Diethyl ether and Pentan-3-one
E. Anisole and acetone

Choose the correct answer from the options given below: [2026]

A & D Only
B, C & E Only
A, B & E Only
A & E Only

1

2

3

4

(4)

Q 20 :

Given below are two statements :

Statement I : Compound (X), shown below, dissolves in $N a H C O ₃$ solution and has two chiral carbon atoms
.

Statement II : Compound (Y), shown below, has two carbons with $s p ³$ hybridization, one carbon with $s p ²$ and one carbon with sp hybridization .

In the light of the above statements, choose the correct answer from the options given below : [2026]

Both Statement I and Statement II are false
Statement I is true but Statement II is false
Both Statement I and Statement II are true
Statement I is false but Statement II is true

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(3)

Two chiral centre and due to presence of –COOH compound dissolves in ${NaHCO}_{3}$ .

Q 21 :

Match List – I with List – II

List – I

List – II

Reagents

Reaction Name (Involving aldehydes)

A.

$H_{2}, Pd - {BaSO}_{4}$

I.

Etard Reaction

B.

${SnCl}_{2}, HCl$

II.

Rosenmund Reduction

C.

${CrO}_{2} {Cl}_{2}, {CS}_{2}$

III.

Gatterman – Koch Reaction

D.

$CO, HCl, Anhyd . {AlCl}_{3}$

IV.

Stephen Reaction

Choose the correct answer from the options given below: [2026]

	List – I		List – II
	Reagents		Reaction Name (Involving aldehydes)
A.	$H_{2}, Pd - {BaSO}_{4}$	I.	Etard Reaction
B.	${SnCl}_{2}, HCl$	II.	Rosenmund Reduction
C.	${CrO}_{2} {Cl}_{2}, {CS}_{2}$	III.	Gatterman – Koch Reaction
D.	$CO, HCl, Anhyd . {AlCl}_{3}$	IV.	Stephen Reaction

A–II, B–IV, C–I, D–III
A–IV, B–I, C–II, D–III
A–II, B–III, C–IV, D–I
A–IV, B–III, C–I, D–II

1

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(1)

NCERT Name reaction theory based

Q 22 :

Given below are the four isomeric compounds (P, Q, R, S)

Identify correct statements from below.

A. Q, R and S will give precipitate with 2, 4 – DNP.
B. P and Q will give positive Baeyer’s test.
C. Q and R will give sooty flame.
D. R and S will give yellow precipitate with $I_{2} $ / NaOH.
E. Q alone will deposit silver with Tollen’s reagent

Choose the correct option. [2026]

A, B, D and E only
A and E only
A, C and E only
C and E only

1

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4

(3)

(A) Q, R, S all three give 2, 4 DNP test as they have Aldehyde/ketone group

(C) Q & R gives sooty flame

(E) Q gives Tollens reagent test

Q 23 :

How many ketones with molecular formula $C_{5} H_{10} O$ give racemic mixture with $L i A l H_{4} / H_{2} O$

(2)

Q 24 :

The value of $\frac{q + p}{q - p}$ on completion of above reaction is _______

(3)

$if P = 1 \Rightarrow q = 2, \frac{2 + 1}{2 - 1} = 3$

Q 25 :

Which of the following organic compounds responds positively to both iodoform test and Fehling's test?

Ethanol
Methanal
Ethanal
Propanone

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(3)

The compound which contains $- {COCH}_{3}$ group in its structure gives a positive iodoform test and the compound which contains $- CHO$ group gives a positive Fehling's test. In ethanal, ${CH}_{3} CHO$ , both groups are present; hence it responds to both iodoform test and Fehling's test.

Iodoform test

${CH}_{3} CHO + I_{2} + NaOH \to {CHI}_{3} + NaI + H_{2} O$

Fehling's test

${CH}_{3} CHO + Cu {(OH)}_{2} \to \underset{(red ppt.)}{{CH}_{3} COOH} + {Cu}_{2} O ↓ + 2 H_{2} O$

Q 26 :

In Cannizzaro reaction, correct order of rate of reaction with respect to substrate

is

$p - M e_{2} N < p - N M e_{2} < p - a l k y l < H < p - C l < m - C l < m - N O_{2}$
$p - M e O < p - N M e_{2} < p - a l k y l < H < m - C l < m - N O_{2} < p - C l$
$p - M e_{2} N < p - M e O < p - a l k y l < H < p - C l < m - C l < m - N O_{2}$
$p - M e O < p - N M e_{2} < p - a l k y l < H < m - N O_{2} < m - C l < p - C l$

1

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(3)

Cannizaro reaction

Q 27 :

The value of (m + n) is

(4)

pair of diastereomers is formed (m), therefore, two fractions are obtained

Q 28 :

A molecule (X) with following structure under mild acidic condition is hydrolysed to produce (Y) and (Z). Identify the correct statements about (Y) and (Z).

[IMAGE 247]

A. Both (Y) and (Z) have same molar mass.

B. (Y) and (Z) can be distinguished from each other by ${NaHCO}_{3}$ .

C. (Y) and (Z) react with $HCN$ with same rates.

D. (Y) and (Z) undergo addition reaction with 2,4-DNP.

Choose the correct answer from the options given below: [2026]

A, B and C only
B and C only
C and D only
A and D only

1

2

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4

(4)

[IMAGE 248]

(A) Molar mass of both Y and Z is 58 g/mol

(B) Neither Y nor Z react with sodium bicarbonate

(C) Out of acetone and propanal, propanal reacts faster with HCN

(D) Both Y and Z undergo nucleophilic addition reaction with 2,4-DNP.

Q 29 :

Consider the following organic reaction sequence. Choose the final product (X) from the following (consider the major product in all intermediate reactions) [2026]

[IMAGE 249]

Benzene
Phenol
Propanol
Chlorobenzene

1

2

3

4

(1)

[IMAGE 250]

Q 30 :

Consider the following reaction.

[IMAGE 251]

The major product (P) formed is: [2026]

[IMAGE 252]
[IMAGE 253]
[IMAGE 254]
[IMAGE 255]

1

2

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4

(3)

[IMAGE 256]

Topic Question Set

Q 1 :

In the Claisen-Schmidt reaction to prepare 351 g of dibenzalacetone using 87 g of acetone, the amount of benzaldehyde required is _______ g. (Nearest integer) [2024]

Q 2 :

The final product A, formed in the following multistep reaction sequence is: [2024]

Q 3 :

The product of the following reaction is P. [2024]

The number of hydroxyl groups present in the product P is ______.

Q 4 :

Major product B of the following reaction has ___________ $π$ -bond. [2024]

Q 5 :

$1, 2 - dibromocyclooctane \to_{\begin{matrix} {(ii) NaNH}_{2} \\ {(iii) Hg}^{2 +} / H^{+} \\ {(iv) Zn-Hg/H}^{+} \end{matrix}}^{(i) KOH(alc.)} \underset{(Major Product)}{P}$

'P' is [2025]

Q 7 :

Consider the following reactions. From these reactions which reaction will give carboxylic acid as a major product?

Choose the correct answer from the options given below: [2025]

Q 9 :

The product (A) formed in the following reaction sequence is

${CH}_{3} - C \equiv CH \to_{{(iii) H}_{2} / Ni}^{\begin{matrix} {(i) Hg}^{2 +} {,H}_{2} {SO}_{4} \\ (ii) HCN \end{matrix}} \underset{Product}{(A)}$ [2025]

Q 10 :

0.1 mole of compound ‘S’ will weigh _____ g.

(Given molar mass in g ${mol}^{- 1}$ C : 12, H : 1, O : 16) [2025]

Q 11 :

In the Claisen-Schmidt reaction to prepare dibenzalacetone from 5.3 g of benzaldehyde, a total of 3.51 g of product was obtained. The percentage yield in this reaction was _____%. [2025]

Q 12 :

Identify the structure of the final product (D) in the following sequence of the reactions:

Total number of $s p^{2}$ hybridised carbon atoms in product D is _____. [2025]

(2)

Q 16 :

The correct sequence of reagents for the above conversion of X to Y is: [2026]

Q 17 :

Consider the following two reactions A and B.

Numerical value of [molar mass of $x +$ molar mass of $y$ ] is ______. [2026]

Q 19 :

Iodoform test can differentiate between

A. Methanol and Ethanol
B. ${CH}_{3} COOH and {CH}_{3} {CH}_{2} COOH$
C. Cyclohexene and cyclohexanone
D. Diethyl ether and Pentan-3-one
E. Anisole and acetone

Choose the correct answer from the options given below: [2026]

Q 23 :

How many ketones with molecular formula $C_{5} H_{10} O$ give racemic mixture with $L i A l H_{4} / H_{2} O$

Q 24 :

The value of $\frac{q + p}{q - p}$ on completion of above reaction is _______

Q 25 :

Which of the following organic compounds responds positively to both iodoform test and Fehling's test?

Q 26 :

In Cannizzaro reaction, correct order of rate of reaction with respect to substrate

is

Q 27 :

The value of (m + n) is

Q 29 :

Consider the following organic reaction sequence. Choose the final product (X) from the following (consider the major product in all intermediate reactions) [2026]

[IMAGE 249]

Q 30 :

Consider the following reaction.

[IMAGE 251]

The major product (P) formed is: [2026]

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	List I		List II
	Reaction		Reagents
A.	Hoffmann Degradation	I.	Conc. KOH, $Δ$
B.	Clemmensen reduction	II.	${CHCl}_{3}, NaOH / H_{3} O^{\oplus}$
C.	Cannizzaro reaction	III.	${Br}_{2}$ , NaOH
D.	Reimer–Tiemann Reaction	IV.	Zn–Hg / HCl

	List I		List II
	Name of reaction		Reagent used
A.	Hell–Volhard–Zelinsky reaction	I.	$NaOH + I_{2}$
B.	Iodoform reaction	II.	${(i) CrO}_{2} {Cl}_{2}, {CS}_{2}$ ${(ii) H}_{2} O$
C.	Etard reaction	III.	${(i) Br}_{2} / red phosphorus$ ${(ii) H}_{2} O$
D.	Gattermann–Koch reaction	IV.	$CO, HCl, {anhyd. AlCl}_{3}$

Topic Question Set

Q 1 : In the Claisen-Schmidt reaction to prepare 351 g of dibenzalacetone using 87 g of acetone, the amount of benzaldehyde required is _______ g. (Nearest integer) [2024]

Q 2 : The final product A, formed in the following multistep reaction sequence is: [2024]

Q 3 : The product of the following reaction is P. [2024] The number of hydroxyl groups present in the product P is ______.

Q 4 : Major product B of the following reaction has ___________ π-bond. [2024]

Q 5 : 1,2-dibromocyclooctane→(ii) NaNH2(iii) Hg2+/H+(iv) Zn-Hg/H+(i) KOH(alc.)P(Major Product) 'P' is [2025]

Q 7 : Consider the following reactions. From these reactions which reaction will give carboxylic acid as a major product? Choose the correct answer from the options given below: [2025]

Q 9 : The product (A) formed in the following reaction sequence is CH3-C≡CH→(iii) H2/Ni(i) Hg2+,H2SO4(ii) HCN(A)Product [2025]

Q 10 : 0.1 mole of compound ‘S’ will weigh _____ g. (Given molar mass in g mol-1 C : 12, H : 1, O : 16) [2025]

Q 11 : In the Claisen-Schmidt reaction to prepare dibenzalacetone from 5.3 g of benzaldehyde, a total of 3.51 g of product was obtained. The percentage yield in this reaction was _____%. [2025]

Q 12 : Identify the structure of the final product (D) in the following sequence of the reactions: Total number of sp2 hybridised carbon atoms in product D is _____. [2025]

(2)

Q 16 : The correct sequence of reagents for the above conversion of X to Y is: [2026]

Q 17 : Consider the following two reactions A and B. Numerical value of [molar mass of x+ molar mass of y] is ______. [2026]

Q 19 : Iodoform test can differentiate between A. Methanol and Ethanol B. CH3COOH and CH3CH2COOH C. Cyclohexene and cyclohexanone D. Diethyl ether and Pentan-3-one E. Anisole and acetone Choose the correct answer from the options given below: [2026]

Q 23 : How many ketones with molecular formula C5H10O give racemic mixture with LiAlH4/H2O

Q 24 : The value of q+pq-p on completion of above reaction is _______

Q 25 : Which of the following organic compounds responds positively to both iodoform test and Fehling's test?

Q 26 : In Cannizzaro reaction, correct order of rate of reaction with respect to substrate is

Q 27 : The value of (m + n) is

Q 29 : Consider the following organic reaction sequence. Choose the final product (X) from the following (consider the major product in all intermediate reactions) [2026] [IMAGE 249]

Q 30 : Consider the following reaction. [IMAGE 251] The major product (P) formed is: [2026]

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Q 1 :

In the Claisen-Schmidt reaction to prepare 351 g of dibenzalacetone using 87 g of acetone, the amount of benzaldehyde required is _______ g. (Nearest integer) [2024]

Q 2 :

The final product A, formed in the following multistep reaction sequence is: [2024]

Q 3 :

The product of the following reaction is P. [2024]

The number of hydroxyl groups present in the product P is ______.

Q 4 :

Major product B of the following reaction has ___________ $π$ -bond. [2024]

Q 5 :

$1, 2 - dibromocyclooctane \to_{\begin{matrix} {(ii) NaNH}_{2} \\ {(iii) Hg}^{2 +} / H^{+} \\ {(iv) Zn-Hg/H}^{+} \end{matrix}}^{(i) KOH(alc.)} \underset{(Major Product)}{P}$

'P' is [2025]

Q 7 :

Consider the following reactions. From these reactions which reaction will give carboxylic acid as a major product?

Choose the correct answer from the options given below: [2025]

Q 9 :

The product (A) formed in the following reaction sequence is

${CH}_{3} - C \equiv CH \to_{{(iii) H}_{2} / Ni}^{\begin{matrix} {(i) Hg}^{2 +} {,H}_{2} {SO}_{4} \\ (ii) HCN \end{matrix}} \underset{Product}{(A)}$ [2025]

Q 10 :

0.1 mole of compound ‘S’ will weigh _____ g.

(Given molar mass in g ${mol}^{- 1}$ C : 12, H : 1, O : 16) [2025]

Q 11 :

In the Claisen-Schmidt reaction to prepare dibenzalacetone from 5.3 g of benzaldehyde, a total of 3.51 g of product was obtained. The percentage yield in this reaction was _____%. [2025]

Q 12 :

Identify the structure of the final product (D) in the following sequence of the reactions:

Total number of $s p^{2}$ hybridised carbon atoms in product D is _____. [2025]

Q 16 :

The correct sequence of reagents for the above conversion of X to Y is: [2026]

Q 17 :

Consider the following two reactions A and B.

Numerical value of [molar mass of $x +$ molar mass of $y$ ] is ______. [2026]

Q 19 :

Iodoform test can differentiate between

A. Methanol and Ethanol
B. ${CH}_{3} COOH and {CH}_{3} {CH}_{2} COOH$
C. Cyclohexene and cyclohexanone
D. Diethyl ether and Pentan-3-one
E. Anisole and acetone

Choose the correct answer from the options given below: [2026]

Q 23 :

How many ketones with molecular formula $C_{5} H_{10} O$ give racemic mixture with $L i A l H_{4} / H_{2} O$

Q 24 :

The value of $\frac{q + p}{q - p}$ on completion of above reaction is _______

Q 25 :

Which of the following organic compounds responds positively to both iodoform test and Fehling's test?

Q 26 :

In Cannizzaro reaction, correct order of rate of reaction with respect to substrate

is

Q 27 :

The value of (m + n) is

Q 29 :

Consider the following organic reaction sequence. Choose the final product (X) from the following (consider the major product in all intermediate reactions) [2026]

[IMAGE 249]

Q 30 :

Consider the following reaction.

[IMAGE 251]

The major product (P) formed is: [2026]