Chemistry CUET 2023

1. Match List-1 with List-II.

Choose the correct answer from the options given below: 

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

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

(c) (A)-(IV), (B)-(UI), (C)-(II), (D)-(I)

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

2. A + B → Nylon 6, 6 

Predict A and B: 

(a) Ethylene glycol + adipic acid

(b) Pentamethylene diamine + adipic acid 

(c) Hexamethylene amine + tartaric acid

(d) Hexamethylene diamine + adipic acid

3. Which of the following compounds is the most acidic?

5. Which of the following hormones is also known as fight or flight hormone? 

(a) Adrenaline

(b) Androgens

(c) Thyroxine         

(d) Insulin

6. Match List-I with List-II. 

Choose the correct answer from the options given below: 

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

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

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

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

7. Which of the following is the correct range of critical micelle concentrations (CMC) for soaps? 

(a) 10² to 10⁴ mol/L

(b) 10⁵ to 10^-8 mol/L 

(c) 10^-4 to 10^-3 mol/L

(d) 10 to 10^-3 mol/L 

(a) A1₂ O₂ . Н₂O

(b) As₂ S₃

(c) TiO₂                 

(d) Blood

(a) At cathode O₂ is reduced to OH- 

(b) At anode H₂ is oxidised to form water 

(c) The cell runs continuously even if reactants are not supplied 

(d) Water is formed as a by product

(a) Paramagnetism falls to minimum in Nd. 

(b) Lu³⁺ ions are bright green in aqueous solution. 

(c) Promethium is an artificially synthesised 4f series element. 

(d) Absorption bands of Lanthanides are broad. 

(a) [Fe(CN)₆]^4-

(b) PO₄^3- 

(c) SO₄^2--               

12. Match List-I with List-II.

Choose the correct answer from the options given below: 

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

(b) (A)-(I), (B)-(IV), (C)-(II), (D)-(II) 

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

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

13. Match List-I with List-II.

Choose the correct answer from the options given below: 

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

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

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

(d) (A)-(I), (B)-(IV), (C)-(II), (D)-(II)

(a) CuSO₄ and pyridine 

(b) FeSO₄ and CHCI₃

(c) CH₃OH and pyridine 

15. Which of the following is the correct formula of a colligative property?

16. The vapour pressure of pure Benzene is 0.900 bar. If a non-volatile electrolytic solid is added, vapour pressure of the solution becomes 0.200 bar. If the number of moles of solute is I and solvent is 2 respectively in solution, what is the value of van't Hoff factor (i)? 

(a) 2.33     

(b) 0.56  

(c) 1.56     

(d) 2.00 

(a) 1-Bromo-2,2-dimethylpropane

(b) 1-Bromo-2-methylbutane 

(c) 1-Bromobutane 

(d) 1-Bromo-3-methylbutane

18. Match List-I with List-II.

Choose the correct answer from the options given below: 

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

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

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

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

19. 19. For the reaction, R→ P, the log ([R₀]/[R]) verses time(t) plot is given below. What is the order of reaction and what are the units of rate constant?

(a) Zero order, s^-1 

(b) First order, s^-1 

(c) Second order, mol-1 L s^-1 

(d) Zero order, mol L-1 s^-1

(a) Fe³⁺ = 82.98% and Fe⁴⁺  =17.02% 

(b) Fe³⁺ = 84.21% and Fe⁴⁺ 15.79% 

(c) Fe³⁺ = 15.79% and Fe⁴⁺: = 84.21% 

21. 

The compound B.is 

(a) Acetanilide 

(b) Benzonitrile 

(c) Benzamide 

(d) Benzene

22.Match List-I with List-II.

(a) (A)-(IV), (B)-(III), (C)-(N, (D)-(M)

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

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

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

(a) 12.5 g

(b) 6.25 g

(c) 1.5625 g

(d) 3.125 g

24.Match List-I with List-II.

Choose the correct answer from the options given below : 

(a) (A)-(IV), (B)-(II), (C)-(II), (D)-(I) 

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

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

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

(A) o-cresol 

(C) m-nitrophenol 

(E) Ethanol 

(B) Phenol 

(D) o-nitrophenol 

Choose the correct answer from the options given below: 

(a) D>B>C>E>A   

(b) E>A>B>C>D 

(c) C>D>A>B>E    

(d) D>C>B>A>E

26. Match List-1 with List-II.

Choose the correct answer from the options given below: 

(a) (A)-(IV), (B)-(II), (C)-(I), (D)-(II) 

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

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

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

(a) Aqueous solution of CrO^2-₄ acidified 

(b) SO₂ gas is passed through acidified Cr² O^2-₇ solution 

(c) Cr² O^2-₇ solution is made alkaline 

(d) CrO₂Cl₂ is dissolved in NaOH 

28. The cell ZnZn²⁺(1M)||Cu²⁺(1 M) Cu. (E⁰ _cell  =1.10V) was allowed to be completely discharged at 298 K. The relative concentration of Zn²⁺/Cu²⁺ is: 

(a) 9.65 x 10⁴

(b) Antilog 24.8 

(c) 37.7

(d) 10^37.3 

29. Match List-1 with List-II.

Choose the correct answer from the options given below: 

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

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

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

(d) (A)-(II), (B)-(II), (C)-(IV), (D)-(I) 

(a) 2NO(g) + O₂(g) → 2NO₂(g) 

(b) CHC1₃ + Cl₂ → CCl₄ + HCI 

(c) CH₃ COO C₂H₅ + H₂O → CH₃COOH+C₂H₅OH 

31. Identify the name reaction given below

(a) Gattermann Reaction 

(b) Sandmeyer Reaction 

(c) Gattermann - Koch Reaction 

(d) Dow's Process

32. Out of the following which will not undergo S_N1 reaction 

pathway: 

(a) 1-Chloro-1,1,1-triphenylmethane 

(b) 2-iodo-2-methylpropane 

(c) 1-Bromo-3,3-dimethylbutane 

(d) 3-Bromoprop-1-ene

33. Which of the following is an example of minimum boiling azeotrope? 

(a) Phenol and aniline

(b) Chloroform and acetone 

(c) Nitric acid and water

(d) Ethanol and acetone

34. Match List-I with List-II.

Choose the correct answer from the options given below: 

(a) (A)-(I), (B)-(II), (C)-(IV), (D)-(II) 

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

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

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

acid which confirms the presence of: 

(a) -COOH group 

(b) –CHO group 

(c) Five-OH groups 

(d) Ketonic group

36. The correct bond order for carbon-oxygen bond in following metal carbonyls 

[Cr(CO)₆], [V(CO)₆]-, [ Mn(CO)₆]⁺ is:  

(a) [V(CO)₆]^-  < [Cr(CO)₆] < [ Mn(CO)₆]⁺ 

(b) [V(CO)₆] ̄ = [Cr(CO)₆] = [ Mn(CO)₆]⁺ 

(c) [ Mn(CO)6]+< [Cr(CO)6] <  [V(CO)6]- 

(d) [Cr(CO)₆] < [V(CO)₆] ̄ < [ Mn(CO)₆]⁺

37. The magnetic nature of elements depends on the presence of unpaired electrons. Identify the configuration of transition elements which shows highest magnetic moment: 

(a) 3d⁷

(b) 3d⁶

(c) 3d⁸

(d) 3d²

38. 

Choose the correct answer from the options given 

below : 

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

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

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

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

39. Match List-I with List-II.

Choose the correct answer from the options given 

below: 

(a) (A)-(I), (B)-(II), (C)-(III), (D)-(TV) 

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

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

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

(A) Blood   - positive

(B) Congo red   - positive

(C) Gum    - negative 

(D) Gold sol   - positive

(E) Fe(OH)3 sol - negative 

Choose the correct answer from the options given below: 

(a) (A) and (C) only 

(b) (B) and (D) only 

(c) (B) and (E) only 

(d) (C) only

Organic compounds containing carbon-oxygen double bonds are called carbonyl compounds. These are highly polar molecules. Hence, their boiling points are higher than hydrocarbons and ethers. Aldehydes can be prepared from dehydrogenation or oxidation of alcohols and by reduction of acyl halides. Ketones are prepared by oxidation of secondary alcohols or by hydration of alkynes etc. Aldehydes and ketones undergo nucleophilic addition reaction with the number of nucleophiles such as HCN, NaHSO3 ammonia derivatives: Carboxylic acids are prepared by the oxidation of primary alcohols, aldehydes and alkenes, by hydrolysis of nitriles. Carboxylic acids are more acidic than alcohols and phenols.

41. The product (A) is :

Answer the following questions on basis of the passage given below: (Q.41 to Q.45) 

Organic compounds containing carbon-oxygen double bonds are called carbonyl compounds. These are highly polar molecules. Hence, their boiling points are higher than hydrocarbons and ethers. Aldehydes can be prepared from dehydrogenation or oxidation of alcohols and by reduction of acyl halides. Ketones are prepared by oxidation of secondary alcohols or by hydration of alkynes etc. Aldehydes and ketones undergo nucleophilic addition reaction with the number of nucleophiles such as HCN, NaHSO3 ammonia derivatives: Carboxylic acids are prepared by the oxidation of primary alcohols, aldehydes and alkenes, by hydrolysis of nitriles. Carboxylic acids are more acidic than alcohols and phenols.

42. The correct increasing order of acidic strength is :

Organic compounds containing carbon-oxygen double bonds are called carbonyl compounds. These are highly polar molecules. Hence, their boiling points are higher than hydrocarbons and ethers. Aldehydes can be prepared from dehydrogenation or oxidation of alcohols and by reduction of acyl halides. Ketones are prepared by oxidation of secondary alcohols or by hydration of alkynes etc. Aldehydes and ketones undergo nucleophilic addition reaction with the number of nucleophiles such as HCN, NaHSO3 ammonia derivatives: Carboxylic acids are prepared by the oxidation of primary alcohols, aldehydes and alkenes, by hydrolysis of nitriles. Carboxylic acids are more acidic than alcohols and phenols.

43. The correct sequence of reagents for the conversion of  3-nitrobromobenzene to 3-nitrobenzoic acid is: 

(a) Mg/ether, CO₂, H₃O⁺

(b) KCN, LiAHH₄, NaOH 

(c) KMnO₄/OH ̄, dil.H2SO₄, CO₂/H⁺

(d) AgNO₃, (Ammoniacal), CO₂, H₃O⁺

Organic compounds containing carbon-oxygen double bonds are called carbonyl compounds. These are highly polar molecules. Hence, their boiling points are higher than hydrocarbons and ethers. Aldehydes can be prepared from dehydrogenation or oxidation of alcohols and by reduction of acyl halides. Ketones are prepared by oxidation of secondary alcohols or by hydration of alkynes etc. Aldehydes and ketones undergo nucleophilic addition reaction with the number of nucleophiles such as HCN, NaHSO3 ammonia derivatives: Carboxylic acids are prepared by the oxidation of primary alcohols, aldehydes and alkenes, by hydrolysis of nitriles. Carboxylic acids are more acidic than alcohols and phenols.

44. Which of the following is most reactive towards nucleophilic addition reaction? 

(a) Butanone

(b) Propanone 

(c) Ethanal

(d) Propanal

Organic compounds containing carbon-oxygen double bonds are called carbonyl compounds. These are highly polar molecules. Hence, their boiling points are higher than hydrocarbons and ethers. Aldehydes can be prepared from dehydrogenation or oxidation of alcohols and by reduction of acyl halides. Ketones are prepared by oxidation of secondary alcohols or by hydration of alkynes etc. Aldehydes and ketones undergo nucleophilic addition reaction with the number of nucleophiles such as HCN, NaHSO3 ammonia derivatives: Carboxylic acids are prepared by the oxidation of primary alcohols, aldehydes and alkenes, by hydrolysis of nitriles. Carboxylic acids are more acidic than alcohols and phenols.

45. The product (X) is:

46. Single bond is not formed by two atoms of : 

(a) P-P

(b) N-N

(c) As-As         

(d) Sb - Sb 

47. Maximum covalency of Nitrogen is: 

(a) 2

(b) 3

(c) 4 

(d) 5 

48. The Nitrogen family show reducing characters. Least basic amongst the following is: 

(A) SbH3

(B) BiH3

(C) NH3

(D) PH3

Choose the correct answer from the options given below: 

(a) (C) only

(b) (A) only

(c) (B) only

(d) (D) only 

49. Most stable hydride amongst the following is : 

(A) NH3

(B) PH3

(C) AsH3

(D) SbH3

(E) BiH3

Choose the correct answer from the options given below: 

(a) (A) only

(b) (B) only

(c) (C) & (D) only

(d) (D) & (E) only 

50. Brown ring in nitrates test is formed when: 

(a) Fe2+ oxidises

(b) Fe3+ reduces

(c) NO3- oxidises

(d) HNO3 oxidises