CUET Chemistry

CUET MOCK TEST PAPER M-5 46. The compouud (X) is an (c) propyl iodide (a) Acid (b) Aldehyde (d) a mixture of (a) and (b) (c) Alcohol (d) Ether 49. Compound (X) on treatment with an excess of 47. The IUPAC name of the acid formed is Cl2 in presence of light gives (a) α-chlorodiethyl ether (a) methanoic acid (b) α, α′-dichlorodiethyl ether (b) ethanoic acid (c) perchlorodiethyl ether (c) propanoic acid (d) Ether (d) butanoic acid 50. Compound (Z) is 48. Compound (Y) is (a) Methanol (b) Ethanol (a) ethyl iodide (c) Propanol (d) Butanol (b) methyl iodide

MOCK TEST PAPER–1 1. The existence of a substance in more than one 7. Which of the following pairs of ions are solid modifications is known as isoelectronic and iso-structural? (a) isomorphism (b) polymorphism (a) NO2+, NO3– (b) ClO3–, ICl4– (c) amorphism (d) allotropy (c) XeO32–, PCl3 (d) ClO3–, SO32–. 2. In comparison to a 0.01 M aqueous solution of 8. Electronic configuration of a transition element urea, the depression in freezing point of a X in +2 oxidation state is [Ar]3d10. The atomic 0.01 M MgCl2 solution is (a) the same (b) about twice (c) about three times (d) about six times number of the element is ....... 3. Which of the following species has lowest (a) 28 (b) 27 tendency to get oxidised? (c) 29 (d) 30. (a) Cl– (b) Cr3+ 9. Which of the following ligands has a denticity (d) Mn2+ (c) Cr of two? 4. The rate of a chemical reaction can be expressed (a) Pyridine (b) Glycinato in (c) Sulphate ion (d) Both (b) and (c) (a) grams per mole 10. Which of the following compounds has the (b) energy consumed per mole highest boiling point? (c) volume of gas per unit time Cl (d) moles formed per liter of solution (a) Cl (b) Cl 5. Which of the following curves correctly represents Freundlich adsorption isotherm? (c) (d) Cl (a) (b) log x/m ® log x/m ® 11. The end product of the following sequence of reactions is OH log p ® p® ¾N¾aO¾H® A ¾C¾O¾2 ® B + C ¾Ac¾2O® D 140°C (c) (d) ¾H¾/H¾2O® log x/m ® log x/m ® (a) Salicyclic acid (b) Salicylaldehyde (c) Phenyl acetate (d) Aspirin. log p ® p® 12. Pentan-2-one and pentan-3-one can be distinguished with the help of 6. In the extraction of copper from its sulphide (a) HCN (b) I2 + NaOH ore, the metal is formed by reduction of copper(I) oxide with ..... . (c) NaHSO3 (d) Both (b) and (c) (a) Carbon (b) Carbon monoxide 13. Which of the following is 3° amine? (c) Copper(II) sulphide (d) Copper(I) sulphide. NH2 (a) (b) Terbutylamine (d) N-methylaniline CH3 (c) Triethylamine M-6

MOCK TEST PAPER–1 M-7 14. Nucleic acids are polymers of .............. . 21. Which arrangement of diagrams A–E represent, the correct sequence of steps involved (a) Nucleosides (b) Nucleotides in the mechanism of heterogeneous catalysis? (c) Peptides (d) α-Amino acids XX 15. Poly acrylonitrile is an example of Y (a) additional polymer (b) condensation polymer (c) natural polymer Y A (d) biodegradable polymer B 16. Chloroquine is an X X (a) Analgesic Y + (b) Antipyretic (c) Antimalarial C Y (d) Both analgesic and antipyretic. D 17. Which of the following statements is not true? (a) Conductivity of semiconductor increases X with increase in temperature Y (b) Pure ionic solids are insulators (c) NaCl is a diamagnetic compound E (d) TiO2 is a paramagnetic substance. (a) A → C → D → E → B 18. On dissolving ammonium chloride in water at room temperature, the solution feels cool to (b) A → C → E → B → D touch. Under which of the following cases dissolution of the salt will be most rapid? (c) A → B → C → D → E (a) Salt crystals in cold water. (b) Salt crystals in hot water. (d) A → E → D → C → B. (c) Powdered salt in cold water. (d) Powdered salt in hot water. 22. In aluminium bronze, the metal present in highest percentage is ..... . 19. Which of the following expressions gives the limiting molar conductivity of ammonium (a) Aluminium (b) Zinc hydroxide? (c) Tin (d) Copper. 23. Which one of the following metals is used as a catalyst is the Haber’s process? (a) Tungsten (b) Molybdenum (c) Chromium (d) Iron containing Mo. (a) Λm0 (NH4OH) + Λ0m(NH4Cl) − Λm0 (HCl) 24. Indicate the complex ion from the following (b) Λm0 (NH4Cl) + Λm0 (NaOH) − Λm0 (NaCl) complexes that gives maximum number of (c) Λm0 (NH4Cl) + Λm0 (NaCl) − Λ0m(NaOH) geometrical isomers. (d) Λm0 (NaOH) + Λm0 (NaCl) − Λm0 (NH4Cl) (a) [Cr(H2O)4Cl2]+ (b) [Pt (NH3)2Cl2]2+ 20. Milk is refrigerated in order to slow the rate of (c) [Co(en)2Cl2]+ (d) [Pt Br(Cl) NH3I]+ decomposition by bacterial action. The decrease in reaction rate is due to: 25. Best reagent for preparing a chloroalkane from (a) a decrease in surface area. (b) a decrease in ΔH for the reaction. an alcohol is .......... . (c) a decrease in the fraction of particles (a) SOCl2 (b) HCl/ZnCl2 possessing sufficient energy. (d) the introduction of an alternate pathway (c) PCl3 (d) Cl2/CCl4 with greater activation energy. 26. Arrange the following compounds in the decreasing order of acid strength. OH OH OH (i) (ii) (iii) NO2 OCH3 (a) (ii) > (i) > (iii) (b) (ii) > (iii) > (i) (c) (iii) > (i) > (ii) (d) (iii) > (ii) > (i)

M-8 CHEMISTRY 27. Which of the following does not give brick red 32. Radius of an octahedral void relative to the radius of the spheres in a close packing is precipitate with Fehling’s solution? (a) Acetaldehyde (b) Formalin (a) 1.414 (b) 0.225 (c) D glucose (d) Acetone (c) 1.225 (d) 0.414 28. Which of the following compound is weakest 33. Mark the correct option on the basis of given base? diagram. :OH:: NH2 Piston (A) Piston (B) : SPM (a) (b) :OH :NH2 Pure water Aqueous (d) (A) solution (c) of NaCl (B) 29. Which of the following bases is not present in (a) water will move from side (B) to side (A) if a RNA? pressure lower than osmotic pressure is applied on piston (B). (a) Adenine (b) Uracil (c) Cytosine (d) Thymine 30. Bakelite is a product of the reaction between (b) water will move from side (B) to side (A) if a pressure equal to osmotic pressure is applied O on piston (B). (a) H OH (c) water will move from side (B) to side (A) if a pressure greater than osmotic pressure is H and HO applied on piston (B). O (b) NH2 and H2N NH2 (d) water will move from side (A) to side (B) if pressure equal to osmotic pressure is applied on piston (A). O 34. During charging of lead storage battery, (c) OH and H H (a) PbSO4 cathode is reduced to Pb. (b) PbSO4 anode is reduced to Pb. Cl (c) PbSO4 cathode is oxidised to Pb. (d) PbSO4 anode is oxidised to PbO2. (d) H 35. The half-life period for a certain first order reaction is 30 minutes. How long will it take OH and Cl Cl for 1/32 of the reactant to be left behind? 31. The structure given below is known as H H (a) 60 minute (b) 120 minute O S CH2—C—NH (c) 90 minute (d) 150 minute CH3 O 36. Method by which lyophobic sol can be protected. CH3 (a) By addition of oppositely charged sol N COOH (b) By addition of an electrolyte H (c) By addition of lyophilic sol (d) By boiling. (a) Penicillin F (b) Penicillin G 37. Amount of oxalic acid present in solution can (c) Penicillin K (d) Ampicillin. be determined by its titration with KMnO4 solution in the presence of H2SO4. The titration

MOCK TEST PAPER–1 M-9 gives unsatisfactory result when carried out in (c) van der Waal force the presence of HCl because HCl (a) reduces permanganate to Mn2+ (d) ion-dipole interaction. (b) oxidises oxalic acid to carbon dioxide and 42. The mathematical relation p = KHxB is based water on (c) gets oxidized by oxalic acid to chlorine (a) Babo’s law (b) Henry’s law (d) furnishes H+ ions in addition to those from (c) Raoult’s law (d) Kohlrausch law. oxalic acid. 38. The complex of Ni2+ with DMG 43. The value of KH for N2 gas in water at 298 K is 86.76 K bar, the value of KH for N2 in water at (dimethylgloxime), Ni(DMG)2, has the 303 K in k bar is structure: (a) 86.76 (b) > 86.76 H (c) < 86.76 (d) unpredictable. OO 44. When a pinch of salt (NaCl) is added to a freshly opened bottle of cocacola or limca, lot of NN effervescence occurs with evolution of a Ni colourless gas NN (a) The gas evolved is O2 OO (b) The gas evolved is HCl H (c) There is no evolution of gas only decomposition of NaCl occurs. What is the geometry shown around the central (d) CO2 is evolved due to its displacement from atom? aerated soft drink. (a) tetrahedral 45. Solubility of KCl in water increases with the (b) distorted tetragonal rise in temperature. This means that ΔdissH of KCl in water (c) octahedral (a) = 0 (b) < 0 (d) square planar (c) > 0 (d) unpredictable. 39. The addition of propene with HOCl proceeds via the addition of Read the following case/passage and answer the questions from 46 to 50: (a) H+ in the first step Group 17 elements are known as halogens (sea-salt (b) Cl+ in the first step forming) their general electronic configuration is ns2. np5. Fluorine the first member of the group differs in (c) OH– in the first step several ways from the rest of the group. Halogens are highly reactive elements having strong affinity for (d) Cl+ and OH– in a single step. hydrogen. All the halogen acids have low boiling points. 40. Which of the following is most acidic? 46. The oxidising power of halogen is correctly given (a) Benzyl alcohol (b) Cyclohexanol in (c) Phenol (d) m-Chlorophenol. (a) F2 > I2 > Br2 > Cl2 (b) F2 > Cl2 > Br2 > I2 Read the following case/passage and answer the (c) I2 > Br2 > Cl2 > F2 questions from 41 to 45: (d) Cl2 > F2 > Br2 > I2. 47. The ΔGf° of HX (where X = F, Cl, Br, I) for the Dissolution of solids in water can be exothermic or reaction, H2 + X2 ⎯⎯→ 2HX is endothermic process but gases dissolve in water (a) large and positive for all halogens always with the evolution of heat. Dissolution of a substance in water can be either because ion dipole (b) small and negative for all halogens interactions or by hydrogen bond formation. Pressure plays a significant role on the solubility to gases in (c) negative when X = F, Cl, Br and positive water. Solubility of a gas in terms of mol fraction (xB) when X = I is related to pressure (p) according to the mathematical relation p = KHxB. (d) Sometimes negative and some time positive. 41. Dissolution of sugar in water can be explained by (a) Hydrogen-bonds (b) ion-ion interactions

M-10 CHEMISTRY 48. At room temperature (298 K) which of the F following is a liquid? HH (a) HF (b) HI (c) (c) I2 (d) none of these. FF H 49. Solid Hydrofluoric acid is correctly represented (d) HH H by which of the following structures. F FF (a) ( H F H F )n 50. The strength of halogen acids follows the order (a) HF > HCl > HBr > HI F (b) HI > HBr > HCl > HF (c) HCl > HF > HI > HBr (b) HH H (d) HF > HI > HBr > HCl FF

ANSWERS CUET MOCK TEST PAPER 1. (b) 2. (c) 3. (b) 4. (a) 5. (b) 6. (b) 7. (b) 8. (d) 9. (a) 10. (d) 11. (a) 12. (b) 13. (b) 14. (d) 15. (a) 16. (c) 17. (c) 18. (c) 19. (a) 20. (b) 21. (d) 22. (c) 23. (a) 24. (c) 25. (b) 26. (b) 27. (a) 28. (c) 29. (d) 30. (a) 31. (a) 32. (c) 33. (d) 34. (d) 35. (b) 36. (d) 37. (a) 38. (b) 39. (b) 40. (c) 41. (d) 42. (d) 43. (b) 44. (d) 45. (a) 46. (d) 47. (b) 48. (a) 49. (c) 50. (b) 1. (b) MOCK TEST PAPER–1 9. (b) 17. (d) 2. (c) 3. (d) 4. (c) 5. (c) 6. (d) 7. (d) 8. (d) 25. (a) 10. (a) 11. (d) 12. (d) 13. (c) 14. (b) 15. (a) 16. (c) 33. (c) 18. (d) 19. (b) 20. (c) 21. (b) 22. (d) 23. (d) 24. (d) 41. (a) 26. (a) 27. (d) 28. (c) 29. (d) 30. (c) 31. (b) 32. (d) 49. (c) 34. (b) 35. (d) 36. (c) 37. (a) 38. (d) 39. (b) 40. (d) 42. (b) 43. (b) 44. (d) 45. (c) 46. (b) 47. (c) 48. (a) 1. (b) 50. (b) 9. (b) 17. (a) MOCK TEST PAPER–2 25. (d) 33. (b) 2. (d) 3. (b) 4. (c) 5. (d) 6. (d) 7. (b) 8. (d) 41. (d) 10. (a) 11. (c) 12. (b) 13. (d) 14. (c) 15. (d) 16. (b) 49. (c) 18. (d) 19. (d) 20. (d) 21. (a) 22. (c) 23. (b) 24. (d) 26. (c) 27. (c) 28. (b) 29. (b) 30. (d) 31. (d) 32. (b) 34. (c) 35. (c) 36. (a) 37. (c) 38. (d) 39. (b) 40. (d) 42. (c) 43. (c) 44. (d) 45. (b) 46. (b) 47. (c) 48. (b) 50. (a) M-26

ANSWERS MOCK TEST PAPER–3 M-27 1. (a) 2. (a) 3. (c) 4. (c) 5. (c) 6. (c) 7. (a) 8. (a) 9. (d) 10. (c) 11. (c) 12. (a) 13. (c) 14. (c) 15. (b) 16. (c) 17. (b) 18. (b) 19. (c) 20. (b) 21. (c) 22. (b) 23. (d) 24. (a) 25. (d) 26. (c) 27. (c) 28. (b) 29. (d) 30. (b) 31. (b) 32. (a) 33. (b) 34. (d) 35. (c) 36. (a) 37. (b) 38. (a) 39. (a) 40. (c) 41. (c) 42. (b) 43. (a) 44. (b) 45. (d) 46. (d) 47. (b) 48. (b) 49. (c) 50. (b) MOCK TEST PAPER–4 7. (d) 8. (b) 1. (d) 2. (b) 15. (d) 16. (c) 9. (c) 10. (b) 3. (c) 4. (c) 5. (a) 6. (b) 23. (b) 24. (a) 17. (a) 18. (a) 11. (a) 12. (d) 13. (d) 14. (b) 31. (c) 32. (c) 25. (d) 26. (d) 19. (c) 20. (d) 21. (c) 22. (b) 39. (a) 40. (d) 33. (c) 34. (c) 27. (b) 28. (a) 29. (b) 30. (a) 47. (b) 48. (b) 41. (c) 42. (b) 35. (a) 36. (d) 37. (c) 38. (b) 49. (d) 50. (c) 43. (a) 44. (c) 45. (d) 46. (c) 7. (c) 8. (d) 15. (a) 16. (d) 1. (d) 2. (b) MOCK TEST PAPER–5 23. (c) 24. (b) 9. (c) 10. (c) 31. (a) 32. (c) 17. (b) 18. (a) 3. (a) 4. (b) 5. (d) 6. (b) 39. (b) 40. (d) 25. (c) 26. (a) 11. (b) 12. (b) 13. (b) 14. (d) 47. (c) 48. (b) 33. (d) 34. (b) 19. (b) 20. (a) 21. (b) 22. (a) 41. (d) 42. (a) 27. (d) 28. (b) 29. (c) 30. (d) 49. (c) 50. (b) 35. (a) 36. (d) 37. (a) 38. (b) 43. (d) 44. (c) 45. (d) 46. (a)