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 shortB. Intermolecular forces are weak
C. Constituent particles have fixed positions
D. Solids oscillate about their mean positions
Answer
B2. 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 crystalB. 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
Answer
B3. Alkali halides do not show Frenkel defect because
A. Cations and anions have almost equal sizeB. 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
Answer
A4. The relative lowering in vapour pressure is proportional to the ratio of number of
A. Solute molecules to solvent moleculesB. 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
Answer
C5. The system that forms maximum boiling azetrope is
A. Acetone-chloroformB. Ethanol-acetone
C. n-hexane-n-heptane
D. Carbon disulphide-acetone
Answer
A6. Value of Henry’s constant KH
A. Increases with increase in temperatureB. Decreases with increase in temperature
C. Remains constant
D. First increases then decreases
Answer
A7. The reaction, 3ClO– (aq) → ClO3 (aq) + 2Cl– (aq) is an example of
A. Oxidation reactionB. Reduction reaction
C. Disproportionation reaction
D. Decomposition reaction
Answer
C8. 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–
Answer
B9. 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 > XB. X > Y > Z
C. Z > Y > X
D. Z=Y=X
Answer
A10. 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. 1B. 2
C. 0
D. 3
Answer
B11. 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 temperatureB. The fraction of molecules having threshold energy increases
C. Collision frequency increases
D. The value of threshold energy decreases
Answer
C12. The ratio t7/8 : t1/2 for the first order is
A. 3B. 5
C. 2
D. 7
Answer
A13. Which of the following is a lyophobic colloid
A. GelatinB. Sulphur
C. Starch
D. Gum arabic
Answer
B14. The Tyndall effect associated with colloidal particles is due to
A. Pesence of electrical chargeB. Scattering of light
C. Absorption of light
D. Reflection of light
Answer
B15. In the colloidal state the particle size ranges
A. Below 1 nmB. Between 1 nm to 100 nm
C. More than 100 nm
D. None of the above
Answer
B16. Which of the following metals is leached by Cyanide process
A. AgB. Na
C. Al
D. Cu
Answer
A17. The method of zone refining of metals is based on the principle of
A. reater mobility of pure metal than that of the impurityB. 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
Answer
D18. 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. ElectrometallurgyB. Hydrometallurgy
C. Electro-refusing
D. Zone-refining
Answer
B19. Nitrogen is relatively inactive element because
A. Its atom has a stable electronic configurationB. It has low atomic radius
C. Its electronegativity is fairly high
D. Dissociation energy of its molecule is fairly high
Answer
D20. 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 configurationB. Due to presence of vacant d-orbitals
C. Reactivity of phosphorus
D. Inert nature of nitrogen
Answer
B21. Which one has the lowest boiling point
A. NH3B. PH3
C. AsH3
D. SbH3
Answer
B22. When manganese dioxide is fused with KOH in air. It gives
A. Potassium permanganateB. Potassium manganate
C. Manganese hydroxide
D. Mn3O4
Answer
B23. When KMnO4 acts as oxidising agent in alkaline medium, the oxidation number of Mn decreases by
A. 1B. 2
C. 3
D. 5
Answer
C24. Which of the following oxides is amphoteric in nature
A. NiOB. ZnO
C. CoO
D. FeO
Answer
B25. IUPAC name of [Pt(NH3)3Br(NO2)Cl]Cl is
A. Triamminechlorodibromidoplatinum (IV) chlorideB. Triamminechloridobromidonitrochloride- platinum (IV) chloride
C. Triamminebromidochloridonitroplatinum (IV) chloride
D. Triamminenitrochlorobromoplatinum (IV) chloride
Answer
C26. The complex ions [Co(NH3)5(NO2)]+2 and [Co(NH3)5(ONO)]+2 are called
A. Ionization isomersB. Linkage isomers
C. Co-ordination isomers
D. Geometrical isomers
Answer
B27. The solution of the complex [Cu(NH3)4]SO4 in water will
A. Give the tests of Cu+2 ionB. Give the tests of NH3
C. Give the tests of SO4-2 ions
D. Not give the tests of any of the above
Answer
C28.Which of the following has a branched chain structure
A. AmylopectinB. Anylose
C. Cellulose
D. Nylon
Answer
A29. The nucleic acid base having two possible binding sites is
A. ThymineB. Cytosine
C. Guanine
D. Adenine
Answer
C30. Which reagent is used to convert glucose into saccharic acid
A. Br2/H2OB. Nitric acid
C. Alkaline solution of iodine
D. Ammonium hydroxide
Answer
B31. Natural rubber is a polymer of
A. ButadieneB. Ethylene
C. Styrene
D. Isoprene
Answer
D32. Bakelite is obtained from phenol by reacting with
A. EthanalB. Methanal
C. Vinyl chloride
D. Ethyleneglycol
Answer
B33. Orion has a unit of
A. Vinyl CyanideB. acrolein
C. glycol
D. isoprene
Answer
A34. Barbituric acid and its derivatives are well known
A. AntipyreticsB. Analgesics
C. Antiseptics
D.Traquillizers
Answer
D35. Dettol used as antiseptic is a mixture of
A. o-chlorophenozylenol + terpeneolB. o-cresol + terpeneol
C. Phenol + terpeneol
D. Chloroxylenol + terpeneol
Answer
D36. 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 disinfectantsB. 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
Answer
B37. When two halogen atoms are attached to same carbon atom then it is
A. vic-dihalideB. gem-dihalide
C. α, ω -halide
D. α, β -halide
Answer
B38. Which of the following is Finkelstein reaction
A. C2H5Br + NaI → C2H5I + NaBrB. C2H5F + NaI → C2H5I + NaF
C. CH3CHO → C2H5OH
D. C2H5Br + AgF → C2H5F + AgBr
Answer
A39. 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-DichloropropaneB. 1, 2-Dichloropropane
C. 2, 2-Dichloropropane
D. 1, 1-Dichloropropane
Answer
D40. 1-Propanol and 2-propanol can be best distinguished by
A. Oxidation with KMnO4 followed by reaction with Fehling solutionB. 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
Answer
C41. Phenol reacts with Br2 in H2 at low temperature to give
A. o-BromophenolB. o-and p-promophenols
C. p-Bromophenol
D. 2, 4, 6-Tribromophenol
Answer
D42. The addition of HCN to carbonyl compounds is an example of
A. Nucleophilic additionB. Electrophilic addition
C. Free radical addition
D. Electromeric addition
Answer
A43. Which of the following compounds does not react with NaHSO3
A. HCHOB. C6H5COCH3
C. CH3COCH3
D. CH3CHO
Answer
B44. 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. AnilineB. Chlorobenzene
C. Benzamide
D. Benzoyl chloride
Answer
A45. The end product Z of the reaction
A. Propanenitrile
B. Triethylamine
C. Diethylamine
D. Propylamine
Answer
ASET-1 SET-2 SET-3 SET-4 SET-5 SET-6
CUET(UG) Chemistry Practice Questions with Answer
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