CUET(UG) Chemistry Sample Paper with Answer

CUET(UG) Chemistry Sample Paper with Answer SET-3

1. SN₁ reaction of alkyl halides leads to

A. Retention of configuration
B. Racemisation
C. Inversion of configuration
D. None of these

Answer

2. The reactivity order of halides for dehydrogenation is

A. RF > RCl > RBr > RI
B. RI > RBr > RCl > RF
C. RI > RCl > RBr > RF
D. RF > RI > RBr > RCl

Answer

3. In chlorination of benzene, the reactive species is

A. Cl⁺
B. Cl^–
C. Cl₂
D. Cl⁻²

Answer

4. Among the following, the molecule with the highest dipole moment is

A. CH₃Cl
B. CH₂Cl₂
C. CHCl₃
D. CCl₄

Answer

5. Oxidation of toluene to benzaldehyde by chromyl, chloride is called

A. Etard reaction
B. Riemer-Tiemann reaction
C. Wurtz reaction
D. Cannizzaro’s reaction

Answer

6. Which of the following does not give iodoform test

A. n-Butyl alcohol
B. Sec-Butyl alcohol
C. Acetophenone
D. Acetaldehyde

Answer

7. Propanal and propanone, both have same molecular formula(C₃H₆O), what do you expect about their boiling points

A. Both have same boiling point
B. Boiling point of propanal is higher than the boiling point of propanone.
C. Boiling point of propanal is lower than the boiling point of propanone
D. Nothing can be predicted

Answer

8. Which of the following does not react with Hinsberg reagent

A. Ethylamine
B. Me₂NH
C. Me₃N
D. Propan-2-amine

Answer

9. Which of the following amines can exhibit enantiomerism

A. Benzeamine
B. 2-Butanamine
C. 2-Propanamine
D. 2-Methyl-propanamine

Answer

10. Which of the following pair of species will yield carbylamine

A. CH₃CH₂Br and KCN
B. CH₃CH₂Br and NH₃ (excess)
C. CH₃CH₂Br and AgCN
D. CH₃CH₂NH₂ and HCHO

Answer

11. The reagents used in Hoffman’s Mustard oil reaction are

A. Mustred oil and 1° amine
B. CS₂ and aniline in HgCl₂
C. Nitrobenzene and CS₂
D. Sand RNC

Answer

12. Which of the following is most basic

Answer

13. The vitamins absorbed from intestine along with fats are

A. A, D
B. A, B
C. A, C
D. D, B

Answer

14. The helical structure of protein is stabilized by

A. Peptide band
B. Dipeptide band
C. Hydrogen bands
D. vander Waal’s forces

Answer

15. Which one is correct

A. Starch is a polymer of a-glucose
B. Amylose is a component of cellulose
C. Proteins are composed of only one type of amino acids
D. In cyclic structure of furanose, these are four carbons and one oxygen atom

Answer

16. Bakelite is

A. Addition polymer
B. Elastomer
C. Thermoplastic
D. Thermosetting

Answer

17. Nylon-6,6 is a polyamide of

A. Vinyl chloride and formaldehyde
B. Adipic acid and methyl amine
C. Adipic acid and hexamethylene diamine
D. Formaldehyde and malamine

Answer

18. Which of the following types of polymers has the strongest inter particle forces

A. Elastomers
B. Thermoplastics
C. Fibres
D. Thermosetting polymers

Answer

19. Artificial sweetener which is stable only under cold conditions is

A. Saccharine
B. Sucralose
C. Aspartame
D. Alitame

Answer

20. Which of the following is analgesic

A. Streptomycin
B. Chloromycetin
C. Novalgin
D. Penicillin

Answer

21. Drug which is used to reduce anxiety and brings calmness is known as

A. Tranquilizer
B. Diuretic
C. Analgesic
D. Antacids

Answer

22. In NaCl structure

A. All octahedral and tetrahedral sites are occupied
B. Only octahedral sites are occupied
C. Only tetrahedral sites are occupied
D. Neither octahedral nor tetrahedral sites are occupied

Answer

23. In Zinc blende structure

A. Zinc ions occupy half of the tetrahedral sites
B. Each Zn^2- ion is surrounded by six sulphide ions
C. Each S^2- ion is surrounded by six Zn²⁺ ions
D. It has fee structure

Answer

24. Edge length of unit cell of chromium metal is 287 pm with bcc arrangement. The atomic radius is of the order

A. 287 pm
B. 574 pm
C. 124.27 pm
D. 143.5 pm

Answer

25. A 5% solution of cane-sugar (molecular weight = 342) is isotonic with 1% solution of substance A. The molecular weight of X is

A. 342
B. 171.2
C. 68.4
D. 136.8

Answer

26. The law which indicates the relationship between solubility of a gas in liquid and pressure is

A. Raoult’s law
B. Henry’s law
C. Lowering of vapour pressure
D. Van’t Hoff law

Answer

27. Which of the following solutions shows positive deviation from Raoult’s law

A. Acetone + Aniline
B. Acetone + Ethanol
C. Water + Nitric acid
D. Chloroform + Benzene

Answer

28. If 96500 coulomb electricity is passed through CuSO₄ solution, it will liberate

A. 63.5 gm of Cu
B. 31.76 gm of Cu
C. 96500 gm of Cu
D. 100 gm of Cu

Answer

29. For a certain redox reaction, E° is positive. This means that

A. ΔG° is positive, K is greater than 1
B. ΔG° is positive, K is less than 1
C. ΔG° is negative, K is greater than 1
D. ΔG° is negative, K is less than 1

Answer

30. The charge required for reducing 1 mole of MnO₄⁻ to Mn⁺² is

A. 1.93 × 10⁵ C
B. 2.895 × 10⁵ C
C. 4.28 × 10⁵ C
D. 4.825 × 10⁵ C

Answer

31. Which of the following, is an example of a fractional order reaction

A. NH₄NO₂ → N₂ + 2H₂O
B. NO + O₃ → NO₂ + O₂
C. 2NO + Br₂ → 2NOBr
D. CH₃CHO → CH₄ + CO

Answer

32. The unit of rate and rate constant are same fora

A. Zero order reaction
B. First order reaction
C. Second order reaction
D. Third order reaction

Answer

33. Half life period of a first order reaction is 10 min. What percentage of the reaction will be completed in 100 minutes

A. 25%
B. 50%
C. 99.9%
D. 75%

Answer

34. Which one of the following is alyophilic colloid

A. Milk
B. Gum
C. Fog
D. Blood

Answer

35. Presence of traces of arsenious oxide (As₂O₃) in the reacting gases SO₂ and O₃in presence of plantinised asbestos in contact process acts as

A. Catalytic promoter
B. Catalytic poison
C. Dehydrating agent
D. Drying agent

Answer

36. Substances which behave as normal electrolytes solution at low concentration and exhibit colloids properties at higher concentration are called

A. Lyophilic colloids
B. Lyophobic colloids
C. Macromolecular colloids
D. Associated colloids

Answer

37. Removal of the unwanted materials like sand, clays, etc. from the ore is known as -----, ----- or -----

A. Concentration, dressing, benefaction
B. Separation, refining, gangue
C. Magnetic separation, purification, gangue
D. Washing, refining, amalgamation

Answer

38. How do we separate two sulphide ores by froth floatation method

A. By using excess of pine oil
B. By adjusting proportion of oil to water or using depressant.
C. By using some solvent in which one of the sulphides is soluble
D. By using collectors and froth stabilisers like xanthates

Answer

39. An ore of tin containing FeCrO₄ is concentrated by

A. Gravity separation
B. Magnetic separation
C. Froth floatation
D. Leaching

Answer

40. The shape of XeF₄ is

A. Tetrahedral
B. Square planar
C. Pyramidal
D. Linear

Answer

41. The number of P-O-P bonds in cyclic metaphosphoric acid is

A. 2
B. 0
C. 3
D. 4

Answer

42. PCl₃ on hydrolysis gives

A. H₃PO₃
B. HPO₃
C. H₃PO₄
D. POCl₃

Answer

43. Which one of the following is called green vitriol

A. FeSO₄ 7H₂O
B. CuSO₄ 5H₂O
C. CaSO₄ 2H₂O
D. None of these

Answer

44. The melting point of copper is higher than that of zinc because

A. Copper has a bcc structure
B. The atomic volume of copper is higher
C. The electrons of copper are involved in metallic bonding
D. The s as well as d electrons of copper are involved in metallic bonding

Answer

45. The correct IUPAC name of the coordination compound K₃[Fe(CN)₅NO] is

A. Potassium pentacyanonitrosylferrate (II)
B. Potassium pentacyanonitroferrate (II)
C. Potassium nitritopentacyanoferrate (IV)
D. Potassium nitritepentacynanoiron (II)

Answer

SET-1 SET-2 SET-3 SET-4 SET-5 SET-6

CUET(UG) Chemistry Practice Questions with Answer

Share

CUET(UG) Chemistry Sample Paper with Answer

CUET(UG) Chemistry Sample Paper with Answer