JEE Main 2023 Chemistry April 6 Shift 1 Question Paper PDF with Solutions

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Download the JEE Main 2023 Chemistry April 6 Shift 1 Question Paper PDF with Solutions and Answer Key below to elevate your JEE Main 2025 preparation! Access the official JEE Main 2023 Chemistry Question Paper for April 6 Shift 1, featuring Section A (20 MCQs) and Section B (10 numerical questions, attempt any 5). This free JEE Main 2023 Chemistry Solution PDF is perfect for JEE Main 2025 aspirants to master the exam pattern and practice previous year Chemistry questions.

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JEE Main 2023 Chemistry Question Paper With Solutions

Question 1:

Match List I with List II

List I (Natural Amino acid) and List II (One Letter Code):

(A) Arginine (I) D
(B) Aspartic acid (II) N
(C) Asparagine (III) A
(D) Alanine (IV) R

Choose the correct answer from the options given below:

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

Correct Answer: (2) (A) – IV, (B) – I, (C) – II, (D) – III
View Solution

Question 2:

Formation of which complex, among the following, is not a confirmatory test of Pb²⁺ ions:

Lead sulphate
Lead nitrate
Lead chromate
Lead iodide

Correct Answer: (2) Lead nitrate
View Solution

Question 3:

The volume of 0.02 M aqueous HBr required to neutralize 10.0 mL of 0.01 M aqueous Ba(OH)₂ is (Assume complete neutralization):

5.0 mL
10.0 mL
2.5 mL
7.5 mL

Correct Answer: (2) 10.0 mL
View Solution

Question 4:

Group-13 elements react with O₂ in amorphous form to form oxides of type M₂O₃ (M = element). Which among the following is the most basic oxide?

Al₂O₃
Tl₂O₃
Ga₂O₃
B₂O₃

Correct Answer: (2) Tl₂O₃
View Solution

Question 5:

The IUPAC name of K₃[Co(C₂O₄)₃] is:

Potassium tris(oxalate)cobaltate(III)
Potassium trioxalatocobalt(III)
Potassium tris(oxalato)cobaltate(III)
Potassium tris(oxalate)cobalt(III)

Correct Answer: (3) Potassium tris(oxalato)cobaltate(III)
View Solution

Question 6:

If the radius of the first orbit of hydrogen atom is a₀, then de Broglie’s wavelength of electron in the 3rd orbit is:

πa₀/6
πa₀/3
6πa₀
3πa₀

Correct Answer: (3) 6πa₀
View Solution

Question 7:

The group of chemicals used as pesticide is:

Sodium chlorate, DDT, PAN
DDT, Aldrin
Aldrin, Sodium chlorate, Sodium arsinite
Dieldrin, Sodium arsinite, Tetrachloroethene

Correct Answer: (2) DDT, Aldrin
View Solution

Question 8:

From the figure of column chromatography given below, identify the incorrect statements:

A. Compound 'c' is more polar than 'a' and 'b'.
B. Compound 'a' is the least polar.
C. Compound 'b' comes out of the column before 'c' and after 'a'.
D. Compound 'a' spends more time in the column.

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

Correct Answer: (2) A, B, and C only
View Solution

Question 9:

Ion having the highest hydration enthalpy among the given alkaline earth metal ions is:

Be²⁺
Ba²⁺
Ca²⁺
Sr²⁺

Correct Answer: (1) Be²⁺

View Solution

Question 10:

The strongest acid from the following is:

Phenol
Chlorophenol (-Cl)
Methylphenol (-CH₃)
Nitrophenol (-NO₂)

Correct Answer: (4) Nitrophenol (-NO₂)
View Solution

Question 11:

In the following reaction, 'B' is:

Option 1
Option 2
Option 3
Option 4

Correct Answer: (4)
View Solution

Question 12:

Structures of BeCl₂ in solid state, vapor phase, and at very high temperature respectively are:

Polymeric, Dimeric, Monomeric
Dimeric, Polymeric, Monomeric
Monomeric, Dimeric, Polymeric
Polymeric, Monomeric, Dimeric

Correct Answer: (1) Polymeric, Dimeric, Monomeric

View Solution

Solid state: BeCl₂ exists as a polymeric structure with each beryllium atom bonded to four chlorine atoms, forming a chain-like structure.

Vapor phase: Below 1200 K, BeCl₂ exists as a dimer (Be₂Cl₄) with chloro-bridging.

High temperature: Above 1200 K, BeCl₂ breaks into monomeric units with a linear structure.

Question 13:

Consider the following reaction that goes from A to B in three steps as shown below:

Choose the correct option:

Number of Intermediates | Number of Activated complexes | Rate determining step

2 | 3 | II
3 | 2 | II
2 | 3 | III
2 | 3 | I

Correct Answer: (1) 2 | 3 | II
View Solution

Question 14:

The product, which is not obtained during the electrolysis of brine solution, is:

HCl
NaOH
Cl₂
H₂

Correct Answer: (1) HCl
View Solution

Question 15:

Which one of the following elements will remain as liquid inside pure boiling water?

Correct Answer: (2) Ga
View Solution

Question 16:

Given below are two statements: one is labeled as “Assertion A” and the other is labeled as “Reason R”.

Assertion A: In the complex Ni(CO)₄ and Fe(CO)₅, the metals have zero oxidation state.
Reason R: Low oxidation states are found when a complex has ligands capable of π-donor character in addition to the σ-bonding.

In the light of the above statements, choose the most appropriate answer from the options given below:

A is not correct but R is correct.
A is correct but R is not correct.
Both A and R are correct, and R is the correct explanation of A.
Both A and R are correct, but R is NOT the correct explanation of A.

Correct Answer: (2) A is correct but R is not correct
View Solution

Question 17:

Given below are two statements:

Statement I: Morphine is a narcotic analgesic. It helps in relieving pain without producing sleep.
Statement II: Morphine and its derivatives are obtained from the opium poppy.

Choose the correct answer from the options given below:

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.
Both Statement I and Statement II are false.

Correct Answer: (3) Statement I is false, but Statement II is true
View Solution

Question 18:

Find out the major product from the following reaction:

Option 1
Option 2
Option 3
Option 4

Correct Answer: (3)
View Solution

Question 19:

During the reaction of permanganate with thiosulphate, the change in oxidation of manganese occurs by a value of 3. Identify which of the below medium will favor the reaction:

Aqueous neutral
Aqueous acidic
Both aqueous acidic and neutral
Both aqueous acidic and faintly alkaline

Correct Answer: (1) Aqueous neutral

View Solution

Step 1: Reaction in a neutral medium
In a neutral medium, permanganate is reduced to manganese(IV) oxide (MnO₂), with a change in oxidation state of 3.

Step 2: Reaction in an acidic medium
In an acidic medium, permanganate is reduced to Mn²⁺, with a change in oxidation state of 5. The condition specified in the question aligns with a neutral medium.

Question 20:

Element not present in Nessler’s reagent is:

Correct Answer: (2) N
View Solution

Question 21:

The standard reduction potentials at 298 K for the following half cells are given below:

NO^-₃ + 4H⁺ + 3e^- → NO(g) + 2H₂O, E⁰ = 0.97 V
V²⁺(aq) + 2e^- → V, E⁰ = -1.19 V
Fe³⁺(aq) + 3e^- → Fe, E⁰ = -0.04 V
Ag⁺(aq) + e^- → Ag(s), E⁰ = 0.80 V
Au³⁺(aq) + 3e^- → Au(s), E⁰ = 1.40 V

The number of metal(s) which will be oxidized by NO^-₃ in aqueous solution is:

Correct Answer: 3
View Solution

Question 22:

Number of crystal systems from the following where body-centered unit cells can be found:

Cubic, tetragonal, orthorhombic, hexagonal, rhombohedral, monoclinic, triclinic

Correct Answer: 3
View Solution

Question 23:

Among the following, the number of compounds which will give a positive iodoform reaction is:

1-Phenylbutan-2-one
2-Methylbutan-2-ol
3-Methylbutan-2-ol
1-Phenylethanol
3,3-dimethylbutan-2-one
1-Phenylpropan-2-ol

Correct Answer: 4
View Solution

Question 24:

Number of isomeric aromatic amines with molecular formula C₈H₁₁N, which can be synthesized by Gabriel phthalimide synthesis is:

Correct Answer: 6
View Solution

Question 25:

Consider the following pairs of solutions which will be isotonic at the same temperature. The number of isotonic pairs is:

1 M NaCl and 2 M urea
1 M CaCl₂ and 1.5 M KCl
1.5 M AlCl₃ and 2 M Na₂SO₄
2.5 M KCl and 1 M Al₂(SO₄)₃

Correct Answer: 4
View Solution

Question 26:

The number of colloidal systems from the following, which will have 'liquid' as the dispersion medium, is:

Gemstones, paints, smoke, cheese, milk, hair cream, insecticide sprays, froth, soap lather

Correct Answer: 5
View Solution

Question 27:

In an ice crystal, each water molecule is hydrogen bonded to:

Correct Answer: 4
View Solution

Question 28:

Consider the following data:

Heat of combustion of H₂(g) = -241.8 kJ mol^-1
Heat of combustion of C(s) = -393.5 kJ mol^-1
Heat of combustion of C₂H₅OH(l) = -1234.7 kJ mol^-1

The heat of formation of C₂H₅OH(l) is (-) kJ mol^-1 (nearest integer).

Correct Answer: 278
View Solution

Question 29:

The equilibrium composition for the reaction PCl₃ + Cl₂ ⇌ PCl₅ at 298 K is given below:

[PCl₃]_eq = 0.2 mol L^-1, [Cl₂]_eq = 0.1 mol L^-1, [PCl₅]_eq = 0.40 mol L^-1
If 0.2 mol of Cl₂ is added, the equilibrium concentration of PCl₅ is × 10^-2 mol L^-1.

Correct Answer: 49
View Solution

Question 30:

The number of species having a square planar shape from the following is:

XeF₄, SF₄, SiF₄, BrF^-₄, [Cu(NH₃)₄]²⁺, [FeCl₄]^2-, [PtCl₄]^2-

Correct Answer: 4
View Solution

JEE Main 2023 Chemistry Paper Analysis April 6 Shift 1

JEE Main 2023 Chemistry Paper Analysis for the exam scheduled on April 6 Shift 1 is available here. Candidates can check subject-wise paper analysis for the exam scheduled on April 6 Shift 1 here along with the topics with the highest weightage.

JEE Main 2023 Chemistry Paper Analysis April 6 Shift 1

JEE Main 2023 Chemistry Question Paper Pattern

Feature	Question Paper Pattern
Examination Mode	Computer-based Test
Exam Language	13 languages (English, Hindi, Assamese, Bengali, Gujarati, Kannada, Malayalam, Marathi, Odia, Punjabi, Tamil, Telugu, and Urdu)
Exam Duration	3 hours
Sectional Time Limit	None
Chemistry Marks	100 marks
Total Number of Questions Asked	20 MCQs + 10 Numerical Type Questions
Total Number of Questions to be Answered	20 MCQs + 5 Numerical Type Questions
Marking Scheme	+4 for each correct answer
Negative Marking	-1 for each incorrect answer

Also Check:

JEE Main Chemistry Question Paper Pattern	JEE Main Chapter-wise Weightage

JEE Main Previous Year Question Paper

JEE Main 2022 Question Paper	JEE Main 2021 Question Paper	JEE Main 2020 Question Paper
JEE Main 2019 Question Paper	JEE Main 2018 Question Paper	JEE Main 2017 Question Paper

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Categories	State
General	1000
Women	800
sc	500
pwd	500
Others	900

JEE Main 2023 Chemistry April 6 Shift 1 Question Paper PDF: Download with Solutions for JEE 2025 Preparation

JEE Main 2023 Chemistry Question Paper With Solutions

JEE Main 2023 Chemistry Paper Analysis April 6 Shift 1

JEE Main 2023 Chemistry Question Paper Pattern

JEE Main Previous Year Question Paper

JEE Main Questions

2.
Density of 3 M NaCl solution is 1.25 g/mL. The molality of the solution is:

3.

4.

In the given circuit the sliding contact is pulled outwards such that the electric current in the circuit changes at the rate of 8 A/s. At an instant when R is 12 Ω, the value of the current in the circuit will be A.

5.
Let $ P_n = \alpha^n + \beta^n $, $ n \in \mathbb{N} $. If $ P_{10} = 123,\ P_9 = 76,\ P_8 = 47 $ and $ P_1 = 1 $, then the quadratic equation having roots $ \alpha $ and $ \frac{1}{\beta} $ is:

6.
The kinetic energy of translation of the molecules in 50 g of CO\(_2\) gas at 17°C is:

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JEE Main 2023 Chemistry Question Paper With Solutions

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JEE Main Questions

2.Density of 3 M NaCl solution is 1.25 g/mL. The molality of the solution is:

3.

4.In the given circuit the sliding contact is pulled outwards such that the electric current in the circuit changes at the rate of 8 A/s. At an instant when R is 12 Ω, the value of the current in the circuit will be A.

5.Let $ P_n = \alpha^n + \beta^n $, $ n \in \mathbb{N} $. If $ P_{10} = 123,\ P_9 = 76,\ P_8 = 47 $ and $ P_1 = 1 $, then the quadratic equation having roots $ \alpha $ and $ \frac{1}{\beta} $ is:

6.The kinetic energy of translation of the molecules in 50 g of CO\(_2\) gas at 17°C is:

Fees Structure

Structure based on different categories

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2.
Density of 3 M NaCl solution is 1.25 g/mL. The molality of the solution is:

4.

In the given circuit the sliding contact is pulled outwards such that the electric current in the circuit changes at the rate of 8 A/s. At an instant when R is 12 Ω, the value of the current in the circuit will be A.

5.
Let $ P_n = \alpha^n + \beta^n $, $ n \in \mathbb{N} $. If $ P_{10} = 123,\ P_9 = 76,\ P_8 = 47 $ and $ P_1 = 1 $, then the quadratic equation having roots $ \alpha $ and $ \frac{1}{\beta} $ is:

6.
The kinetic energy of translation of the molecules in 50 g of CO\(_2\) gas at 17°C is: