CUET-UG SERIES Chemistry
Organic Chemistry
28 previous year questions.
Volume: 28 Ques
Yield: High
High-Yield Trend
1
2025 2
2024 21
2023 3
2022 1
2021 Chapter Questions 28 MCQs
01
PYQ 2021
medium
chemistry ID: cuet-ug-
Which of the following is the most stable free radical?
1
2
3
4
02
PYQ 2022
medium
chemistry ID: cuet-ug-
The structure of major monohalo product in the following reaction is___
1
2
3
4
03
PYQ 2022
easy
chemistry ID: cuet-ug-
The structure of the product of the following reaction is:
1
2
3
4
04
PYQ 2022
easy
chemistry ID: cuet-ug-
The product of the following reaction is:
1
2
3
4
05
PYQ 2023
easy
chemistry ID: cuet-ug-
The correct IUPAC name of 
is:
1
1-Bromo-2-methylbutane
2
1-Bromo-2-ethylpropane
3
1-Bromo-2-ethyl-2-methyl ethane
4
2-Methyl-1-bromobutane
06
PYQ 2023
medium
chemistry ID: cuet-ug-
In amines, the nitrogen atom is A and B hybridised, making geometry of amines as C. Then A, B, and C respectively are:
1
trivalent, sp , trigonal
2
tetravalent, sp , tetrahedral
3
trivalent, sp , pyramidal
4
tetravalent, sp , pyramidal
07
PYQ 2023
medium
chemistry ID: cuet-ug-
C H O does not form a silver mirror with TollenΓ’β¬β’s reagent but forms an oxime with hydroxylamine. It can give positive:
1
Iodoform test
2
Fehlingβs test
3
Schiffβs test
4
Carbylamine test
08
PYQ 2023
medium
chemistry ID: cuet-ug-
Answer the question on the basis of the passage given below:
Alcohols and phenol are formed when a hydrogen atom in a hydrocarbon, aliphatic and aromatic respectively, is replaced by . The substitution of a hydrogen atom in a hydrocarbon by an alkoxy or aryloxy group forms ethers.
Alcohols and phenol consist of two parts, an alkyl/aryl group and a hydroxyl group. The properties of alcohols and phenols are primarily due to the hydroxyl group. The nature of alkyl and aryl groups simply modify these properties. Alcohol react both as nucleophiles and electrophiles whereas in phenols, the reactions that take place on the aromatic ring are electrophilic substitution reactions.
In the following reaction, compounds A and C are:
Choose the correct answer from the options given below:
Alcohols and phenol are formed when a hydrogen atom in a hydrocarbon, aliphatic and aromatic respectively, is replaced by . The substitution of a hydrogen atom in a hydrocarbon by an alkoxy or aryloxy group forms ethers.
Alcohols and phenol consist of two parts, an alkyl/aryl group and a hydroxyl group. The properties of alcohols and phenols are primarily due to the hydroxyl group. The nature of alkyl and aryl groups simply modify these properties. Alcohol react both as nucleophiles and electrophiles whereas in phenols, the reactions that take place on the aromatic ring are electrophilic substitution reactions.
In the following reaction, compounds A and C are:
Choose the correct answer from the options given below:
1
identical
2
positional isomers
3
functional isomers
4
optical isomers
09
PYQ 2023
medium
chemistry ID: cuet-ug-
Answer the question on the basis of the passage given below:
Alcohols and phenols are formed when a hydrogen atom in a hydrocarbon, aliphatic and aromatic respectively, is replaced by . The substitution of a hydrogen atom in a hydrocarbon by an alkoxy or aryloxy group forms ethers.
Alcohols and phenol consist of two parts, an alkyl/aryl group and a hydroxyl group. The properties of alcohols and phenols are primarily due to the hydroxyl group. The nature of alkyl and aryl groups simply modify these properties. Alcohol react both as nucleophiles and electrophiles whereas in phenols, the reactions that take place on the aromatic ring are electrophilic substitution reactions.
Name the given reaction:
1
Williamson's synthesis
2
Kolbe's reaction
3
Reimer-Tiemann reaction
4
Sandmeyeras reaction
10
PYQ 2023
hard
chemistry ID: cuet-ug-
Acetaldehyde and benzaldehyde can be best distinguished by:
1
2,4 DNP test
2
Tollens' test
3
Sodium bicarbonate test
4
Fehling's test
11
PYQ 2023
medium
chemistry ID: cuet-ug-
Glucose does not react with:
1
Conc. HNOΓ’βΖ
2
Acetic Anhydride
3
Hydroxylamine
4
Sodium bisulphite
12
PYQ 2023
medium
chemistry ID: cuet-ug-
An alkyl halide with molecular formula C H Br on dehydrohalogenation gives two isomeric alkenes X and Y with formula C H . On reductive ozonolysis, X and Y give four compounds CH CHO, (CH ) CHO, CH CO, HCHO. The alkyl halide is:
1
3-Bromopentane
2
2-Bromo-3-methylbutane
3
2-Bromo-2-methylbutane
4
1-Bromo-2,2-dimethylpropane
13
PYQ 2023
medium
chemistry ID: cuet-ug-
Arrange the following amines in the order of decreasing basic character in gaseous phase:
(A) NHβ
(B) (CHβ)βN
(C) (CHβ)βNH
(D) CHβNHβ
Choose the correct answer from the options given below:
1
(CHβ)NHβ, (CHβ)βNH, (CHβ)βN, NHβ
2
(CHβ)βN, (CHβ)βNH, CHβNHβ, NHβ
3
(CHβ)βNH, (CHβ)βN, CHβNHβ, NHβ
4
(CHβ)βN, (CHβ)βNH, (CHβ)NHβ, NHβ
14
PYQ 2023
medium
chemistry ID: cuet-ug-
Answer the question on the basis of the passage given below:
Alcohols and phenol are formed when a hydrogen atom in a hydrocarbon, aliphatic and aromatic respectively, is replaced by . The substitution of a hydrogen atom in a hydrocarbon by an alkoxy or aryloxy group forms ethers.
Alcohols and phenol consist of two parts, an alkyl/aryl group and a hydroxyl group. The properties of alcohols and phenols are primarily due to the hydroxyl group. The nature of alkyl and aryl groups simply modify these properties. Alcohol react both as nucleophiles and electrophiles whereas in phenols, the reactions that take place on the aromatic ring are electrophilic substitution reactions.
Aspirin is an acetylation product of:
Alcohols and phenol are formed when a hydrogen atom in a hydrocarbon, aliphatic and aromatic respectively, is replaced by . The substitution of a hydrogen atom in a hydrocarbon by an alkoxy or aryloxy group forms ethers.
Alcohols and phenol consist of two parts, an alkyl/aryl group and a hydroxyl group. The properties of alcohols and phenols are primarily due to the hydroxyl group. The nature of alkyl and aryl groups simply modify these properties. Alcohol react both as nucleophiles and electrophiles whereas in phenols, the reactions that take place on the aromatic ring are electrophilic substitution reactions.
Aspirin is an acetylation product of:
1
-Dihydroxybenzoic acid
2
-Hydroxybenzoic acid
3
-Hydroxybenzoic acid
4
-Dihydroxybenzene
15
PYQ 2023
medium
chemistry ID: cuet-ug-
Match List-I with List-II.
Choose the correct answer from the options given below:
List-I | List-II | ||
| (A) | Clemenson reduction | (I) |  |
| (B) | Kolbe's reaction | (II) |  |
| (C) | Etard reaction | (III) |  |
| (D) | Wolf Kishner reduction | (IV) |  |
Choose the correct answer from the options given below:
1
(A)-(II), (B)-(I), (C)-(III), (D)-(IV)
2
(A)-(I), (B)-(II), (C)-(III), (D)-(IV)
3
(A)-(III), (B)-(IV), (C)-(II), (D)-(I)
4
(A)-(III), (B)-(IV), (C)-(I), (D)-(II)
16
PYQ 2023
medium
chemistry ID: cuet-ug-
Which of the following is not correct about the order of a reaction?
1
The order of a reaction is the sum of the powers of molar concentration of the reactants in the rate law expression.
2
The order of reaction is always equal to the sum of the stoichiometric coefficient of reactants in the balanced chemical equation of a reaction.
3
The order of a reaction can be a fractional number.
4
Order of a reaction is an experimentally determined quantity.
17
PYQ 2023
medium
chemistry ID: cuet-ug-
Answer the question on the basis of the passage given below:
Alcohols and phenol are formed when a hydrogen atom in a hydrocarbon, aliphatic and aromatic respectively, is replaced by . The substitution of a hydrogen atom in a hydrocarbon by an alkoxy or aryloxy group forms ethers.
Alcohols and phenol consist of two parts, an alkyl/aryl group and a hydroxyl group. The properties of alcohols and phenols are primarily due to the hydroxyl group. The nature of alkyl and aryl groups simply modify these properties. Alcohol react both as nucleophiles and electrophiles whereas in phenols, the reactions that take place on the aromatic ring are electrophilic substitution reactions.
Few compounds are given below (A to D). Arrange them in the increasing order of their boiling points.
(A) Pentan-1-ol
(B) n-Butane
(C) Pentan-1-al
(D) Ethoxyethane
Choose the correct answer from the options given below:
Alcohols and phenol are formed when a hydrogen atom in a hydrocarbon, aliphatic and aromatic respectively, is replaced by . The substitution of a hydrogen atom in a hydrocarbon by an alkoxy or aryloxy group forms ethers.
Alcohols and phenol consist of two parts, an alkyl/aryl group and a hydroxyl group. The properties of alcohols and phenols are primarily due to the hydroxyl group. The nature of alkyl and aryl groups simply modify these properties. Alcohol react both as nucleophiles and electrophiles whereas in phenols, the reactions that take place on the aromatic ring are electrophilic substitution reactions.
Few compounds are given below (A to D). Arrange them in the increasing order of their boiling points.
(A) Pentan-1-ol
(B) n-Butane
(C) Pentan-1-al
(D) Ethoxyethane
Choose the correct answer from the options given below:
1
(D)<(B)<(C)<(A)
2
(B)<(C)<(A)<(D)
3
(C)<(B)<(A)<(D)
4
(D)<(B)<(A)<(C)
18
PYQ 2023
medium
chemistry ID: cuet-ug-
Which of the following statement is correct about the following reaction:
1
Reactant and product will rotate plane polarised light in the same direction.
2
Product will be optically inactive.
3
Product will be dextrorotatory in nature.
4
Product will be laevorotatory in nature.
19
PYQ 2023
easy
chemistry ID: cuet-ug-
Basic hydrolysis of esters produces:
1
Carboxylates
2
Carboxylic acids
3
Aldehydes
4
Ketones
20
PYQ 2023
medium
chemistry ID: cuet-ug-
Which of the following is not correct?
1
Acetone and chloroform form a solution with negative deviation from Raoult's law.
2
HNO3 and H2O forms maximum boiling azeotrope at 68% HNO3 and 32% H2O by mass composition
3
van't Hoff factor value for acetic acid-2, when its concentration is 0.1m and Ka=1.8-10-6
4
Concentrations of isotonic solutions are same.
21
PYQ 2023
hard
chemistry ID: cuet-ug-
Positive carbylamine test is shown by:
1
N-Methylaniline
2
N,N-Dimethlaniline
3
Triethylamine
4
p-Methylbenzyamine
22
PYQ 2023
medium
chemistry ID: cuet-ug-
Answer the question on the basis of the passage given below:
Alcohols and phenol are formed when a hydrogen atom in a hydrocarbon, aliphatic and aromatic respectively, is replaced by . The substitution of a hydrogen atom in a hydrocarbon by an alkoxy or aryloxy group forms ethers.
Alcohols and phenol consist of two parts, an alkyl/aryl group and a hydroxyl group. The properties of alcohols and phenols are primarily due to the hydroxyl group. The nature of alkyl and aryl groups simply modify these properties. Alcohol react both as nucleophiles and electrophiles whereas in phenols, the reactions that take place on the aromatic ring are electrophilic substitution reactions.
The IUPAC name of the following compound is: 
1
2-Methyl-2-phenyl ethanol
2
1-Methyl-1-phenyl ethanol
3
2-Phenylpropan-2-ol
4
1,1-Dimethyl-1-phenyl methanol
23
PYQ 2023
medium
chemistry ID: cuet-ug-
Predict the product for the reaction:
1
2
3
4
24
PYQ 2023
hard
chemistry ID: cuet-ug-
The appropriate reagent for the following conversion is: 
1
SO Cl
2
N-Chlorosuccinimide
3
Cl /FeCl
4
SOCl
25
PYQ 2023
medium
chemistry ID: cuet-ug-
D(+)-Glucose reacts with hydroxylamine and forms oxime. The structure of oxime would be:
1
2
3
4
26
PYQ 2024
hard
chemistry ID: cuet-ug-
Identify the correct order of organic compounds in the following chemical reaction:
(A) CH3MgBr
(B) CH3Br
(C) CH3Cl
(D) CH4
Choose the correct answer from the options given below:
(A) CH3MgBr
(B) CH3Br
(C) CH3Cl
(D) CH4
Choose the correct answer from the options given below:
1
(B), (A), (D), (C)
2
(A), (C), (B), (D)
3
(B), (A), (C), (D)
4
(C), (B), (D), (A)
27
PYQ 2024
medium
chemistry ID: cuet-ug-
The reactivity order of the following alkyl halides towards dehydrohalogenation:
(A) R-F
(B) R-Br
(C) R-Cl
(D) R-I
Choose the correct answer from the options given below:
(A) R-F
(B) R-Br
(C) R-Cl
(D) R-I
Choose the correct answer from the options given below:
1
A B C D
2
A C B D
3
D B C A
4
D C B A
28
PYQ 2025
medium
chemistry ID: cuet-ug-
Which of the following compounds contains a carbonyl group?
1
Alcohol
2
Aldehyde
3
Amine
4
Ether