JEE Main 2023 Chemistry April 10 Shift 2 Question Paper with Solution PDF- Download Here

Question 1:

The correct relationships between unit cell edge length 'a' and radius of sphere 'r' for face-centred and body-centred cubic structures respectively are:

• (1) \( 2\sqrt{2}r = a \) and \( \sqrt{3}r = 4a \)
• (2) \( r = 2\sqrt{2}a \) and \( 4r = \sqrt{3}a \)
• (3) \( r = 2\sqrt{2}a \) and \( 3r = 4a \)
• (4) \( 2\sqrt{2}r = a \) and \( 4r = \sqrt{3}a \)

The reaction used for preparation of soap from fat is:

• (1) an addition reaction
• (2) an oxidation reaction
• (3) alkaline hydrolysis reaction
• (4) reduction reaction

Match List I with List II




Choose the correct answer from the options given below:

• (1) A-II, B-IV, C-I, D-III
• (2) A-II, B-IV, C-III, D-I
• (3) A-II, B-III, C-IV, D-I
• (4) A-I, B-III, C-II, D-IV

The correct order of metallic character is:

• (1) K \(>\) Be \(>\) Ca
• (2) Be \(>\) Ca \(>\) K
• (3) K \(>\) Ca \(>\) Be
• (4) Ca \(>\) K \(>\) Be

The correct order for acidity of the following hydroxyl compounds is:





Choose the correct answer from the options given below:

• (1) E \(>\) C \(>\) D \(>\) A \(>\) B
• (2) D \(>\) E \(>\) C \(>\) A \(>\) B
• (3) E \(>\) D \(>\) C \(>\) B \(>\) A
• (4) C \(>\) E \(>\) D \(>\) B \(>\) A

Match List I with List II




Choose the correct answer from the options given below:

• (1) A-IV, B-I, C-II, D-III
• (2) A-IV, B-I, C-III, D-II
• (3) A-II, B-IV, C-III, D-I
• (4) A-II, B-IV, C-I, D-III \textbf{Correct Answer:} (3) A-II, B-IV, C-III, D-I

In Carius tube, an organic compound 'X' is treated with sodium peroxide to form a mineral acid 'Y'. The solution of BaCl\(_2\) is added to 'Y' to form a precipitate 'Z'. 'Z' is used for the quantitative estimation of an extra element. 'X' could be:

• (1) Chloroxyleneol
• (2) Methionine
• (3) A nucleotide
• (4) Cytosine

Number of water molecules in washing soda and soda ash respectively are:

• (1) 1 and 0
• (2) 1 and 10
• (3) 10 and 0
• (4) 10 and 1

Gibbs energy vs T plot for the formation of oxides is given below. For the given diagram, the correct statement is:

• (1) At 600°C, C can reduce ZnO
• (2) At 600°C, C can reduce FeO
• (3) At 600°C, CO cannot reduce FeO
• (4) At 600°C, CO can reduce ZnO

Buna-S can be represented as:

Given below are two statements, one is labelled as Assertion A and the other is labelled as Reason R.

Assertion A: Physical properties of isotopes of hydrogen are different.

Reason R: Mass difference between isotopes of hydrogen is very large.


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

• (1) Both A and R are true but R is NOT the correct explanation of A
• (2) A is false but R is true
• (3) A is true but R is false
• (4) Both A and R are true and R is the correct explanation of A

The correct order of the number of unpaired electrons in the given complexes is

A. \([ Fe(CN)_6 ]^{3-}\)

B. \([ FeF_6 ]^{3-}\)

C. \([ CoF_6 ]^{3-}\)

D. \([ Cr(oxalate)_3 ]^{3-}\)

E. \([ Ni(CO)_4 ]\)

Choose the correct answer from the options given below:

• (1) E \(<\) A \(<\) D \(<\) C \(<\) B
• (2) A \(<\) E \(<\) C \(<\) B \(<\) D
• (3) A \(<\) E \(<\) D \(<\) C \(<\) B
• (4) E \(<\) A \(<\) B \(<\) D \(<\) C

The decreasing order of hydride affinity for following carbonations is:





Choose the correct answer from the options given below:

• (1) C, A, D, B
• (2) A, C, B, D
• (3) A, C, D, B
• (4) C, A, B, D

Incorrect method of preparation for alcohols from the following is:

• (1) Ozonolysis of alkene.
• (2) Hydroboration-oxidation of alkene.
• (3) Reaction of alkyl halide with aqueous NaOH.
• (4) Reaction of Ketone with RMgBr followed by hydrolysis.

In the reaction given below:




The product ‘X’ is:

• (1) \( H_2N - CH_2 - CH_2OH \)
• (2) \( H_2N - CH_2 - OH \)
• (3) \( H_2N - CH_3 \)
• (4) \( H_2N - CH_2OH \)

Given below are two statements, one is labelled as Assertion A and the other is labelled as Reason R.
Assertion A: The energy required to form \( Mg^{2+} \) from Mg is much higher than that required to produce \( Mg^+ \).
Reason R: \( Mg^{2+} \) is a small ion and carries more charge than \( Mg^+ \).

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

• (1) Both A and R are true and R is the correct explanation of A
• (2) A is true but R is false
• (3) A is false but R is true
• (4) Both A and R are true but R is NOT the correct explanation of A

The major product 'P' formed in the given reaction is:

Ferric chloride is applied to stop bleeding because -

• (1) Blood absorbs FeCl\(_3\) and forms a complex.
• (2) FeCl\(_3\) reacts with the constituents of blood which is a positively charged sol.
• (3) Fe\(^{3+}\) ions coagulate blood which is a negatively charged sol.
• (4) Cl\(^-\) ions cause coagulation of blood.

The delicate balance of CO\(_2\) and O\(_2\) is NOT disturbed by

• (1) Burning of Coal
• (2) Deforestation
• (3) Burning of petroleum
• (4) Respiration

Given below are two statements, one is labelled as Assertion A and the other is labelled as Reason R.

Assertion A: 3.1500 g of hydrated oxalic acid dissolved in water to make 250.0 mL solution will result in 0.1M oxalic acid solution.

Reason R: Molar mass of hydrated oxalic acid is 126 g mol\(^{-1}\)


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

• (1) A is false but R is true
• (2) A is true but R is false
• (3) Both A and R are true but R is NOT the correct explanation of A
• (4) Both A and R are true and R is the correct explanation of A

The number of molecules from the following which contain only two lone pair of electrons is:
\[ H_2O, \, N_2, \, CO, \, XeF_4, \, NH_3, \, NO, \, CO_2, \, F_2 \]

The specific conductance of 0.0025M acetic acid is \( 5 \times 10^{-5} \) S cm\(^{-1}\) at a certain temperature. The dissociation constant of acetic acid is _______ \(\times 10^{-7}\). (Nearest integer)

Consider limiting molar conductivity of CH\(_3\)COOH as 400 S cm\(^2\) mol\(^{-1}\).

An aqueous solution of volume 300 cm\(^3\) contains 0.63 g of protein. The osmotic pressure of the solution at 300 K is 1.29 mbar. The molar mass of the protein is _______ g mol\(^{-1}\).

Given: \( R = 0.083 \, L bar K^{-1} mol^{-1} \)

The difference in the oxidation state of Xe between the oxidised product of Xe formed on complete hydrolysis of XeF\(_4\) and XeF\(_4\) is __________

The number of endothermic process/es from the following is

• (A) I\(_2\) (g) \(\rightarrow\) 2I (g)
• (B) HCl (g) \(\rightarrow\) H (g) + Cl (g)
• (C) H\(_2\)O (l) \(\rightarrow\) H\(_2\)O (g)
• (D) C (s) + O\(_2\) (g) \(\rightarrow\) CO\(_2\) (g)
• (E) Dissolution of ammonium chloride in water

The number of incorrect statement/s from the following is

• (A) The successive half lives of zero order reactions decreases with time.
• (B) A substance appearing as reactant in the chemical equation may not affect the rate of reaction.
• (C) Order and molecularity of a chemical reaction can be a fractional number.
• (D) The rate constant units of zero and second order reaction are mol L\(^{-1}\) s\(^{-1}\) and mol\(^{-1}\) L s\(^{-1}\) respectively.

The electron in the \(n\)th orbit of Li\(^{2+}\) is excited to \((n + 1)\)th orbit using the radiation of energy \( 1.47 \times 10^{-17} \) J. The value of \(n\) is __________.

% Given
Given: \( R_H = 2.18 \times 10^{-18} \, J \)

For a metal ion, the calculated magnetic moment is 4.90 BM. This metal ion has _______ number of unpaired electrons.

In alkaline medium, the reduction of permanganate anion involves a gain of ____ electrons.

Question 30:

For the given reaction, if the initial pressure is 450 mmHg and the pressure at time t is 720 mmHg at a constant temperature T and constant volume V. The fraction of A(g) decomposed under these conditions is \( x \times 10^{-1} \). The value of x is _______ (nearest integer)