CUET(UG) Chemistry Sample Paper with Answer

CUET(UG) Chemistry Sample Paper with Answer

CUET(UG) Chemistry Sample Paper with Answer

CUET(UG) Chemistry Sample Paper with Answer SET-5


1. Which of the following is not a characteristic property of solids

A. Intermolecular distances are short
B. Intermolecular forces are weak
C. Constituent particles have fixed positions
D. Solids oscillate about their mean positions

AnswerB

2. Crystalline solids are anisotropic in nature. What is the meaning of anisotropic in the given statement

A. A regular pattern of arrangement of particles which repeats itself periodically over the entire crystal
B. Different values of some of physical properties are shown when measured along different directions in the same crystals
C. An irregular arrangement of particles over the entire crystal
D. Same values of some of physical properties are shown when measured along different directions in the same crystals

AnswerB

3. Alkali halides do not show Frenkel defect because

A. Cations and anions have almost equal size
B. There is a large difference in size of cations and anions
C. Cations and anions have low coordination number
D. Anions cannot be accommodated in voids

AnswerA

4. The relative lowering in vapour pressure is proportional to the ratio of number of

A. Solute molecules to solvent molecules
B. Solvent molecules to solute molecules
C. Solute molecules to the total number of molecules in solution
D. Solvent molecules to the total number of molecules in solutionAnswer

AnswerC

5. The system that forms maximum boiling azetrope is

A. Acetone-chloroform
B. Ethanol-acetone
C. n-hexane-n-heptane
D. Carbon disulphide-acetone

AnswerA

6. Value of Henry’s constant KH

A. Increases with increase in temperature
B. Decreases with increase in temperature
C. Remains constant
D. First increases then decreases

AnswerA

7. The reaction, 3ClO (aq) → ClO3 (aq) + 2Cl (aq) is an example of

A. Oxidation reaction
B. Reduction reaction
C. Disproportionation reaction
D. Decomposition reaction

AnswerC

8. If limiting molar conductivity of Ca+2 and Cl are 119.0 and 76.3 S cm2 mol-1, then the value of limiting molar conductivity of CaCl2 will be

A. 195.3 S cm2 mol
B. 271.6 S cm2 mol
C. 43.3 S cm2 mol
D. 314.3 S cm2 mol

AnswerB

9. The standard reduction potential values of three metallic cations X, Y and Z are 0.52, –3.03 and –1.18 V respectively. The order of reducing power of the corresponding metal is

A. Y > Z > X
B. X > Y > Z
C. Z > Y > X
D. Z=Y=X

AnswerA

10. For a chemical reaction A → B, it is found that the rate of the reaction quardruples when the concentration of A is doubled. The rate expression for the reaction is, rate = k [A]n where the value of n is

A. 1
B. 2
C. 0
D. 3

AnswerB

11. On increasing the temperature of the reacting system by 10° the rate of reaction almost becomes double. The most appropriate reason for this is that

A. Activation energy decreases by increases of temperature
B. The fraction of molecules having threshold energy increases
C. Collision frequency increases
D. The value of threshold energy decreases

AnswerC

12. The ratio t7/8 : t1/2 for the first order is

A. 3
B. 5
C. 2
D. 7

AnswerA

13. Which of the following is a lyophobic colloid

A. Gelatin
B. Sulphur
C. Starch
D. Gum arabic

AnswerB

14. The Tyndall effect associated with colloidal particles is due to

A. Pesence of electrical charge
B. Scattering of light
C. Absorption of light
D. Reflection of light

AnswerB

15. In the colloidal state the particle size ranges

A. Below 1 nm
B. Between 1 nm to 100 nm
C. More than 100 nm
D. None of the above

AnswerB

16. Which of the following metals is leached by Cyanide process

A. Ag
B. Na
C. Al
D. Cu

AnswerA

17. The method of zone refining of metals is based on the principle of

A. reater mobility of pure metal than that of the impurity
B. Higher m.pt. of the impurity than that of the pure metal
C. Greater noble character of the solid metal than that of the impurity
D. Greater solubility of the impurity in the molten state than in the solid

AnswerD

18. The process of isolation of metals by dissolving the ore in a suitable chemical eagent following by precipitation of the metal by a more electropositive metal is called

A. Electrometallurgy
B. Hydrometallurgy
C. Electro-refusing
D. Zone-refining

AnswerB

19. Nitrogen is relatively inactive element because

A. Its atom has a stable electronic configuration
B. It has low atomic radius
C. Its electronegativity is fairly high
D. Dissociation energy of its molecule is fairly high

AnswerD

20. Pentavalence in phosphorus is more stable when compared to that of nitrogen even though they belong to same group. This is due to

A. Dissimilar electronic configuration
B. Due to presence of vacant d-orbitals
C. Reactivity of phosphorus
D. Inert nature of nitrogen

AnswerB

21. Which one has the lowest boiling point

A. NH3
B. PH3
C. AsH3
D. SbH3

AnswerB

22. When manganese dioxide is fused with KOH in air. It gives

A. Potassium permanganate
B. Potassium manganate
C. Manganese hydroxide
D. Mn3O4

AnswerB

23. When KMnO4 acts as oxidising agent in alkaline medium, the oxidation number of Mn decreases by

A. 1
B. 2
C. 3
D. 5

AnswerC

24. Which of the following oxides is amphoteric in nature

A. NiO
B. ZnO
C. CoO
D. FeO

AnswerB

25. IUPAC name of [Pt(NH3)3Br(NO2)Cl]Cl is

A. Triamminechlorodibromidoplatinum (IV) chloride
B. Triamminechloridobromidonitrochloride- platinum (IV) chloride
C. Triamminebromidochloridonitroplatinum (IV) chloride
D. Triamminenitrochlorobromoplatinum (IV) chloride

AnswerC

26. The complex ions [Co(NH3)5(NO2)]+2 and [Co(NH3)5(ONO)]+2 are called

A. Ionization isomers
B. Linkage isomers
C. Co-ordination isomers
D. Geometrical isomers

AnswerB

27. The solution of the complex [Cu(NH3)4]SO4 in water will

A. Give the tests of Cu+2 ion
B. Give the tests of NH3
C. Give the tests of SO4-2 ions
D. Not give the tests of any of the above

AnswerC

28.Which of the following has a branched chain structure

A. Amylopectin
B. Anylose
C. Cellulose
D. Nylon

AnswerA

29. The nucleic acid base having two possible binding sites is

A. Thymine
B. Cytosine
C. Guanine
D. Adenine

AnswerC

30. Which reagent is used to convert glucose into saccharic acid

A. Br2/H2O
B. Nitric acid
C. Alkaline solution of iodine
D. Ammonium hydroxide

AnswerB

31. Natural rubber is a polymer of

A. Butadiene
B. Ethylene
C. Styrene
D. Isoprene

AnswerD

32. Bakelite is obtained from phenol by reacting with

A. Ethanal
B. Methanal
C. Vinyl chloride
D. Ethyleneglycol

AnswerB

33. Orion has a unit of

A. Vinyl Cyanide
B. acrolein
C. glycol
D. isoprene

AnswerA

34. Barbituric acid and its derivatives are well known

A. Antipyretics
B. Analgesics
C. Antiseptics 
D.Traquillizers

AnswerD

35. Dettol used as antiseptic is a mixture of

A. o-chlorophenozylenol + terpeneol
B. o-cresol + terpeneol
C. Phenol + terpeneol
D. Chloroxylenol + terpeneol

AnswerD

36. Antiseptics and disinfectants either kill or prevent growth of microorganisms. Identify which of the following statements is not true

A. Chlorine and iodine are used as strong disinfectants
B. Dilute solutions of boric acid and hydrogen Peroxide are strong antiseptics
C. Disinfectants harm the living tissues
D. A 0.2% solution of phenol is an antiseptic while 1% solution acts as a disinfectant

AnswerB

37. When two halogen atoms are attached to same carbon atom then it is

A. vic-dihalide
B. gem-dihalide
C. α, ω -halide
D. α, β -halide

AnswerB

38. Which of the following is Finkelstein reaction

A. C2H5Br + NaI → C2H5I + NaBr
B. C2H5F + NaI → C2H5I + NaF
C. CH3CHO → C2H5OH
D. C2H5Br + AgF → C2H5F + AgBr

AnswerA

39. A dihalogen derivative ‘X’ of a hydrocarbon with three carbon atoms react with ale. KOH and produces hydrocarbon which forms red ppt. with ammonical Cu2Cl2. ‘X’ gives an aldehyde on reaction with aq. KOH. The compound ‘X’ is

A. 1, 3-Dichloropropane
B. 1, 2-Dichloropropane
C. 2, 2-Dichloropropane
D. 1, 1-Dichloropropane

AnswerD

40. 1-Propanol and 2-propanol can be best distinguished by

A. Oxidation with KMnO4 followed by reaction with Fehling solution
B. Oxidation with acidic dichromate followed by reaction with Fehling solution
C. Oxidation by heating with copper followed by reaction with Fehling solution
D. Oxidation with cone. H2SO4 followed by reaction with Fehling solution

AnswerC

41. Phenol reacts with Br2 in H2 at low temperature to give

A. o-Bromophenol
B. o-and p-promophenols
C. p-Bromophenol
D. 2, 4, 6-Tribromophenol

AnswerD

42. The addition of HCN to carbonyl compounds is an example of

A. Nucleophilic addition
B. Electrophilic addition
C. Free radical addition
D. Electromeric addition

AnswerA

43. Which of the following compounds does not react with NaHSO3

A. HCHO
B. C6H5COCH3
C. CH3COCH3
D. CH3CHO

AnswerB

44. Benzoic acid is treated with SOCl2 and the product (X) formed is reacted with ammonia to give (Y). (Y) on reaction with Br2 and KOH gives (Z). (Z) in the reaction is

A. Aniline
B. Chlorobenzene
C. Benzamide
D. Benzoyl chloride

AnswerA

45. The end product Z of the reaction

complete the following reactions
A. Propanenitrile
B. Triethylamine
C. Diethylamine
D. Propylamine

AnswerA

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

CUET(UG) Chemistry Practice Questions with Answer


 Share