Chemistry CUET-2024 Paper Set B

1.The increasing order of acidity of the following compounds based on pKa values is

(A) BrCH₂COOH (C) FCH₂COOH

(B) CICH₂COOH (D) HCOOH

Choose the correct answer from the options given below:

(1) (D) < (A) < (B) < (C)

(2) (A) < (D) < (C) < (B)

(3) (B) < (A) < (D) < (C)

(4) (C) < (B) < (D) < (A)

ANS A

2.In the following table, match the reactants given in List-I with the correct product in List-II as the reaction of hydration of alkene under acidic condition.

Choose the correct answer from the options given below:

(1) (A)-(I), (B) - (II), (C) - (III), (D) - (IV)

(2) (A)-(1), (B) - (III), (C) - (II), (D) - (IV)

(3) (A) - (II), (B) - (I), (C) - (IV), (D) - (III)

(4) (A)-(III), (B) - (IV), (C) - (1), (D) - (II)

ANS C

3. Which among the following is not an Analgesic ?

(1) Morphine      

(2) Heroin

(3) Codeine

(4)Ranitidine

ANS D

(A) CH₃CH₂CH₂C₂Br

(B) CH₃CH₂CH(Br)CH₃

(C) (CH₃)₃CBr

(D) (CH₃)₂CHC₂,Br

Choose the correct answer from the options given below:

(1) (A)<(B) < (C) < (D)

(2) (A)<(C) < (B) < (D)

(3) (B)<(A) < (D) < (C)

(4) (C)<(B)<(D)<(A)

Read the following passage and answer the next five questions based on it.

Battery or cell converts chemical energy of the redox reaction to electrical energy. In fuel cell (a galvanic cell), the chemical energy of combustion of fuels like H₂, ethanol, etc. are directly converted to electrical energy. In a fuel cell, H₂ and O₂ react to produce electricity, where H, gas is oxidised at anode and oxygen is reduced at cathode and the reactions involved are

Anode reaction: H₂ + 20H^--→ 2H₂O +2e^--

Cathode reaction: O₂+ 2H₂O+4e→4OH^--

67.2 L of H₂ at STP reacts in 15 minutes.

5.The number of moles of hydrogen oxidised is:

(1) 0.33 moles      

(2) 33.3icha

(3) 3.0 moles        

(4) 1.33 moles

ANS C

Read the following passage and answer the next five questions based on it.

Battery or cell converts chemical energy of the redox reaction to electrical energy. In fuel cell (a galvanic cell), the chemical energy of combustion of fuels like H₂, ethanol, etc. are directly converted to electrical energy. In a fuel cell, H₂ and O₂ react to produce electricity, where H, gas is oxidised at anode and oxygen is reduced at cathode and the reactions involved are

Anode reaction: H₂ + 20H^--→ 2H₂O +2e^--

Cathode reaction: O₂+ 2H₂O+4e→4OH^--

6.The number of moles of electrons produced in the oxidation of 67.2 L of H₂ at STP is:

(1) 2 moles 

(2) 4 moles

(3) 1 mole  

(4) 6 moles

ANS D

Read the following passage and answer the next five questions based on it.

Battery or cell converts chemical energy of the redox reaction to electrical energy. In fuel cell (a galvanic cell), the chemical energy of combustion of fuels like H₂, ethanol, etc. are directly converted to electrical energy. In a fuel cell, H₂ and O₂ react to produce electricity, where H, gas is oxidised at anode and oxygen is reduced at cathode and the reactions involved are

Anode reaction: H₂ + 20H^--→ 2H₂O +2e^--

Cathode reaction: O₂+ 2H₂O+4e→4OH^--

67.2 L of H₂ at STP reacts in 15 minutes.

7.The quantity of electricity produced in the oxidation of 67.2 L of H₂ at STP is:

(1) 96500 C

(2) 579000 C

(3) 193000 C        

(4) 48250 C

ANS B

Read the following passage and answer the next five questions based on it.

Battery or cell converts chemical energy of the redox reaction to electrical energy. In fuel cell (a galvanic cell), the chemical energy of combustion of fuels like H₂, ethanol, etc. are directly converted to electrical energy. In a fuel cell, H₂ and O₂ react to produce electricity, where H, gas is oxidised at anode and oxygen is reduced at cathode and the reactions involved are

Anode reaction: H₂ + 20H^--→ 2H₂O +2e^--

Cathode reaction: O₂+ 2H₂O+4e→4OH^--

8. If the entire current produced is used for the electrodeposition of Silver (at.wt. 108 g mol) from Silver (1) solution, the amount of silver deposited will be:

(1) 324 g     

(2) 648 g

(3) 108 g     

(4) 216 g

ANS B

Read the following passage and answer the next five questions based on it.

Battery or cell converts chemical energy of the redox reaction to electrical energy. In fuel cell (a galvanic cell), the chemical energy of combustion of fuels like H₂, ethanol, etc. are directly converted to electrical energy. In a fuel cell, H₂ and O₂ react to produce electricity, where H, gas is oxidised at anode and oxygen is reduced at cathode and the reactions involved are

Anode reaction: H₂ + 20H^--→ 2H₂O +2e^--

Cathode reaction: O₂+ 2H₂O+4e→4OH^--

9.The source of electrical energy on the Apollo moon flight was :

(1) Lead storage battery

(2) A generator set

(3) Ni-Cd cells       

(4) H2-O2 Fuel cell

ANS D

Read the following passage and answer the next five questions based on it.

Sc      Ti      V       Cr     Mn    Fe      Co     Ni      Cu     Zn

Y       Zr      Nb     Mo    Tc      Ru     Rh     Pd     Ag     Cd

La      Hf      Ta     W      Re     Os     Ir       Pt      Au     Hg

In any transition series, as we move from left to right the d-orbitals are progressively filled and their properties vary accordingly.

Ce Pr Nd Pm Sm Eu Gd Tb Dy Ho Er Tm Yb Lu

Th Pa U Np Pu Am Cm Bk Cf Es Fm Md No Lr

The above are the two series of f-block elements in which the chemical properties won't change much. The 5f-series elements are radioactive in nature and mostly are artificially synthesized in laboratories and thus much is not known about their chemical properties

Q10. Identify the incorrect statement.

(1) Second ionisation enthalpy of Ag is greater than second ionisation enthalpy of Pd.

(2) Zr and Hf shares almost identical nuclear properties.

(3) Melting point of Mn is lower than that of Cr.

(4) Interstitial compounds are non-stoichiometric and neither ionic nor covalent in nature.

ANS A

Read the following passage and answer the next five questions based on it.

Sc      Ti      V       Cr     Mn    Fe      Co     Ni      Cu     Zn

Y       Zr      Nb     Mo    Tc      Ru     Rh     Pd     Ag     Cd

La      Hf      Ta     W      Re     Os     Ir       Pt      Au     Hg

In any transition series, as we move from left to right the d-orbitals are progressively filled and their properties vary accordingly.

Ce Pr Nd Pm Sm Eu Gd Tb Dy Ho Er Tm Yb Lu

Th Pa U Np Pu Am Cm Bk Cf Es Fm Md No Lr

The above are the two series of f-block elements in which the chemical properties won't change much. The 5f-series elements are radioactive in nature and mostly are artificially synthesized in laboratories and thus much is not known about their chemical properties

Q11. Which of the following is the correct order of second ionisation enthalpy?

(1) V Cr Mn        

(2) V<Cr<Mn

(3) VMn     

(4) V>Cr

ANS A

Read the following passage and answer the next five questions based on it.

Sc      Ti      V       Cr     Mn    Fe      Co     Ni      Cu     Zn

Y       Zr      Nb     Mo    Tc      Ru     Rh     Pd     Ag     Cd

La      Hf      Ta     W      Re     Os     Ir       Pt      Au     Hg

In any transition series, as we move from left to right the d-orbitals are progressively filled and their properties vary accordingly.

Ce Pr Nd Pm Sm Eu Gd Tb Dy Ho Er Tm Yb Lu

Th Pa U Np Pu Am Cm Bk Cf Es Fm Md No Lr

The above are the two series of f-block elements in which the chemical properties won't change much. The 5f-series elements are radioactive in nature and mostly are artificially synthesized in laboratories and thus much is not known about their chemical properties

Q12.Which of the following pair of compounds exhibits same colour in aqueous solution?

(1) FeCl₂, CuCl₂     

(2) Gửi VOC₂, CuCl₂

_{(3) VOCl2, ,FeCl2}

(4) VOCI₂ , MnCl₂

ANS A

Read the following passage and answer the next five questions based on it.

Sc      Ti      V       Cr     Mn    Fe      Co     Ni      Cu     Zn

Y       Zr      Nb     Mo    Tc      Ru     Rh     Pd     Ag     Cd

La      Hf      Ta     W      Re     Os     Ir       Pt      Au     Hg

In any transition series, as we move from left to right the d-orbitals are progressively filled and their properties vary accordingly.

Ce Pr Nd Pm Sm Eu Gd Tb Dy Ho Er Tm Yb Lu

Th Pa U Np Pu Am Cm Bk Cf Es Fm Md No Lr

The above are the two series of f-block elements in which the chemical properties won't change much. The 5f-series elements are radioactive in nature and mostly are artificially synthesized in laboratories and thus much is not known about their chemical properties

Q13.Which metal has the highest oxidation state in the first row transition series?

(1) Cr

(2) Fe

(3) Mn          

(4) V

ANS C

Read the following passage and answer the next five questions based on it.

Sc      Ti      V       Cr     Mn    Fe      Co     Ni      Cu     Zn

Y       Zr      Nb     Mo    Tc      Ru     Rh     Pd     Ag     Cd

La      Hf      Ta     W      Re     Os     Ir       Pt      Au     Hg

In any transition series, as we move from left to right the d-orbitals are progressively filled and their properties vary accordingly.

Ce Pr Nd Pm Sm Eu Gd Tb Dy Ho Er Tm Yb Lu

Th Pa U Np Pu Am Cm Bk Cf Es Fm Md No Lr

The above are the two series of f-block elements in which the chemical properties won't change much. The 5f-series elements are radioactive in nature and mostly are artificially synthesized in laboratories and thus much is not known about their chemical properties

Q14 Why do the actinoids exhibit higher number of oxidation states than lanthanoids?

(1) 4f orbitals are more diffused than the 5f orbitals)

(2) Energy difference between 5f and 6d is less with respect to the energy difference between 4f and 5d.

(3) Energy difference between 5f and 6d is more with respect to the energy difference between 4f and 5d.

(4) Actinoids are more reactive in nature than the lanthanoids.

ANS B

15.Camphor in nitrogen gas is a type of solution

(1) Gas - Gas                 

(2) Solid - Gas

(3) Liquid - Gas           

(4) Solid - Liquid

ANS B

Q16. Identify the correct order of organic compounds in the following chemical reaction:

(1CH₃MgBr)         

(2)CH₃Br

(3)CH₃Cl   

(4)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)

ANS A

Q17.Consider the following statements regarding osmotic pressure:

A) Molar mass of a protein can be determined using osmotic pressure method.

B) The osmotic pressure is proportional to the molarity.

C) Reverse osmosis occurs when a pressure larger than osmotic pressure is applied to the concentrated solution side.

D) Edema occurs due to retention of water in tissue cells as a result of osmosis.

Choose the correct statements with reference to osmotic pressure:

(1) (A), (B) and (D) only 

(2) (A), (B) and (C) only

(3) (A), (C) and (D)   

(4) (A),(B), (C) and (D) only

ANS D

Q18. Vapour pressures of pure liquids 'A' and 'D' at 50°C are 500 mm Hg and 800 mm Hg respectively. The binary solution of 'A' and 'D' boils at 50°C and 760 mm Hg pressure. The mole percentage of 'D' in the solution is:

(1) 33.33 mole percent  

(2) 66.67 mole percent

(3) 75.00 mole percent  

(4) 75.25 mole percent

ANS B

Q19. For the following reaction:

volume is increased to double its value by decreasing the pressure on it. If the reaction is first order wi respect to X and second order with respect to Athe rate of reaction will:

(1) Decrease by eight times of its initial value

(2) Increase by eight times of its initial value

(3) Increase by four times of its initial value

(4) Remain unchanged

ANS A

20.The total number of sigma bonds present in PO, are:

(1) 6 

(2) 7 

(3) 16         

(4) 17

ANS D

21.In the electrolysis of alumina to obtain Aluminiummetal, the cryolite is added mainly to

(1) lower the melting point of alumina.

(2) dissolve the alumina in the molten cryolite.

(3) remove the impurities of alumina.

(4) increase the electrical conductivity.

ANS A

Q22.Identify the order of reaction if its rate constant

K=

(1) Zero order               

(2) First order

(3) Second order 

(4) Half order

ANS B

(1) Sum of stoichiometric coefficients in balanced chemical reaction

(2) The molecularity of overall reaction

(3) Order of fastest step of the reaction

(4) The molecularity of slowest step of reaction)

Q24 A molecule X associates in a given solvent as per the following equation:

For a given concentration of X, the van't Hoff factor was found to be 0.80 and the fraction of asso molecules was 0.3. The correct value of 'n' is:

(1) 2  

(2) 3 

(3) 1 

(4) 5

ANS B

25.The oxidation number of Co in complex [Co(H₂CH₂CH₂NH₂)₃]₂(SO₄)₃ is

(1) 2  

(2) 4 

(3)2  

(4) 5

ANS A

Q26.The correct structure of dipeptide, Gly-Ala (glycyl alanine) is

(1) H₂N-CH₂-CO-NH-CH(CH₃)COOH

(2) HOOC-CH₂-NH-CO-CH(CH₃) – NH₂

(3) HOOC-CH(CH₃)-NH-CO-CH₂ NH₂

(4) H₂N-CH(CH₃)-CO-NH-CH₂ - COOH

ANS A

Q27. The total number of ions produced from the complex [Cr(NH₃)₆]Cl₃ in aqueous solution will be

(1) 2  

(2) 3 

(3) 4 

(4) 5

ANS C

28.Arrange the following in decreasing order of number of molecules contained in:

(1) 16 g of O2               

(2) 16 g of CO2

(3) 16 g of CO             

(4) 16 g of H2

Choose the correct order from the options given Below:

(1) (A), (B), (C), (D)      

(2) (D), (C), (A), (B)

(3) (B), (A), (D), (C)      

(4) (C), (B), (D), (A)

ANS B

(1) 127 pm 

(2) 181 pm

(3) 157 pm

(4) 108 pm

(1) 16 minutes     

(2) 78 minutes     

(3) 8 minutes

(4) 4 minutes

31.Which of the following compounds will be repelled when placed in an external magnetic field?

(1) Na₂[CuCl₄]              

(2) Na₂[CdCl4]

(3) K₄[Fe(CN)₆]             

(4) K₃[Fe(CN)₆]

ANS A

(1) 5.90                

(2) 1.73

(3) 4.90                

(4) 3.87

33.The correct order of increasing boiling points of Pentan-1-ol, n-Butane, Pentanal, Ethoxyethane

(1) Ethoxyethane, Pentanal, n-Butane, Pentan-1-ol

(2) Pentanal, n-Butane, Ethoxyethane, Pentan-1-ol

(3) n-Butane, Pentanal, Ethoxyethane, Pentan-1-ol

(4) n-Butane, Ethoxyethane, Pentanal, Pentan-1-ol

ANS D

Q34 In the following reaction, identify the product D.

(1) o-Nitrobenzoic acid           

(2) p-Nitrobenzoic acid

(3) o,p-Dinitrobenzoic acid    

(4) m-Nitrobenzoic acid

ANS D

Q35 The gold number range of some of the lyophilic colloids is given below:

A: 0.005 0.01, B: 0.15-0.25, C: 0.04 1.0 and D: 15-25.

Which among these can be used as a better protective colloid?

(1) A 

(3) C

(2) B 

(4) D

ANS A

36.Reaction of aniline with conc. HNO3 and conc. H2SO4 at 298 K will produce 47% of

(1) p-Nitroaniline

(2) o-Nitroaniline

(3) m-Nitroaniline        

(4) 2,4-Dinitroaniline

ANS C

37.What will be the increasing order of basic strength of the following compounds?

C₂H5NH2, (C₂H5)₂NH, (C₂H5)3N, C₆H₅NH₂

(1) C₂H₅NH₂ < (C₂H₅)₂NH < (C₂H₅)₃N, C6H5NH2

(2) C₆H₅NH₂ < C₂H₅NH₂ < C₂H₅)₃N < (C₂H₅)₂NH

(3) C₂H₅)₃N < (C₂H₅)₂NH < C₆H₅NH₂ < C₂H₅NH₂

(4) (C₂H₅)₂NH < C₂H₅)₃N < C₂H₅NH₂ < C₆H₅NH₂

ANS B

Q38 Which of the following compounds will give Hell-Volhard-Zelinsky reaction?

(1) R-CH₂-COOH

(2) R₃ C-CHO

(3) R₂CO                

(4) H-COOH

ANS A

Q39 Arrange the following acids in increasing order of their acidic strengths:

HCOOH₂ FCH₂COOH NO₂CH₂COOH, CICH₂COOH

(1) HCOOH₂ < FCH₂COOH < NO₂CH₂COOH < CICH₂COOH

(2) HCOOH₂ < NO,CH,COOH < CICH₂COOH < FCH₂COOH

(3) NO₂CH₂COOH < HCOOH₂ < CICH₂COOH < FCH₂COOH

(4) HCOOH₂ < CICH₂COOH < FCH₂COOH < NO₂CH₂COOH

ANS D

40.In the following compounds, what is the increasing order of their reactivity towards nucleophilic addition reactions?

Benzaldehyde, p-Tolualdehyde, p-Nitrobenzaldehyde, Acetophenone

(1) Benzaldehyde < p-Tolualdehyde

(2) Acetophenone< Benzaldehyde < p-Tolualdehyde< p-Nitrobenzaldehyde

(3) Acetophenone< p-Tolualdehyde< Benzaldehyde < p-Nitrobenzaldehyde

(4) Benzaldehyde < Acetophenone < p-Tolualdehyde < p-Nitrobenzaldehyde

ANS C

41.The Gatterman-Koch reaction is used in the industrial preparation of benzaldehyde. The electrophile involved in this reaction is

(1) CO+                

(2) HCI+ CO₂ + anhydrous AlCl₃

_{(3) HCO+}

(4) CO+ anhydrous AICI₃

ANS C

Q42 Formaldehyde undergoes Cannizzaro reaction because

(A) It has an alpha-hydrogen atom.

(B) It does not have alpha-hydrogen atom.

(C) It does not undergo self-oxidation and reduction on heating with concentrated alkali.

(D) It undergoes self-oxidation and reduction on heating with concentrated alkali.

Choose the correct answer from the options given below:

(1) (B) and (D) only      

(3) (B) and (C) only

(2) (A) and (C) only      

(4) (A) and (D) only

ANS A

43.In the reaction, (CH₃)₃C-O-CH₃ + HI→ Products

CH₃OH and (CH₃)₃CI are the products and not CHI and (CH3)3C-OH. It is because,

(A) in step 2 of the reaction the departure of the leaving group (HO-CH3) creates less stable carbocation.

(B) in step 2 of the reaction the departure of the leaving group (HO-CH3) creates more stable carbocation.

(C) the reaction follows S_Nl mechanism.

(D) the reaction follows S_N2 mechanism.

Choose the correct answer from the options given below:

(1) (B) and (D) only      

(3) (A) and (D) only

(2) (B) and (C) only      

(4) (A) and (C) only

ANS B

Q44. Aniline does not undergo Friedel-Crafts reaction because

(A) It forms salt with the Lewis acid catalyst, AlCl₃.

(B) Nitrogen of aniline acquires negative charge.

(C) Nitrogen of aniline acquires positive charge.

(D) Nitrogen acts as a strong deactivating group in the further reaction.

Choose the correct answer from the options given below

(1) (A), (B) and (D) only.      

(2) (A), (B) and (C) only

(3) (A), (C) and (D) only      

(4) (B), (C) and (D) only

ANS C

Q45. Although chlorine is an electron withdrawing group yet it is ortho- and para-directing in electrophilic aromatic substitution reaction because

(A) Chlorine withdraws electrons through inductive effect.

(B) Chlorine destabilises the intermediate carbocation formed during electrophilic substitution.

(C) Chlorine accepts electrons through resonance.

(D) Chlorine releases electrons through resonance.

Choose the correct answer from the options given below

(1) (A), (B) and (D) only     

(2) (A), (B) and (C) only

(3) (A), (C) and (D) only    

(4) (B), (C) and (D) only

ANS A

46.In Etard reaction, the final product is

(1) Aromatic aldehyde

(2) Aromatic chloride

(3) Aromatic amine

(4) Aromatic alcohol

ANS B

47.Match List-I with List-II :

Choose the correct answer from the options given below:

(1) (A)-(1), (B) (II), (C) - (III), (D) - (IV)

(2) (A)-(1), (B) - (III), (C) - (II), (D) - (IV)

(3) (A)-(1), (B) - (II), (C) - (IV), (D) - (III)

(4) (A)-(III), (B) - (IV), (C) - (I), (D) - (II)

ANS C

48.Match List-I with List-II :

Choose the correct answer from the options given below:

(1) (A)-(III), (B) - (IV), (C) - (II), (D) - (I)

(2) (A)-(IV), (B) - (III), (C) - (I), (D) - (II)

(3) (A)-(1), (B) - (IV), (C) - (II), (D) - (III)

(4) (A)-(III), (B) - (I), (C) - (IV), (D) - (II)

ANS A

49.Match List-I with List-II :

Choose the correct answer from the options given below:

(1) (A)-(1), (B) - (II), (C) - (III), (D) (IV)

(2) (A)-(1), (B) - (III), (C) - (II), (D) - (IV)

(3) (A)-(1), (B) - (II), (C) - (IV), (D) - (III)

(4) (A)-(III), (B) - (IV), (C) - (I), (D) - (II)

ANS D

Q50 Match List-I with List-II:

Choose the correct answer from the options given below:

(1) (A)-(III), (B) - (II), (C) - (I), (D) - (IV)

(2) (A)-(II), (B) - (III), (C) - (1), (D) - (IV)

(3) (A)-(III), (B) - (II), (C) - (IV), (D) - (1)

(4) (A)-(II), (B)-(III), (C) - (IV), (D) - (I)

ANS D