This quiz works best with JavaScript enabled. Home > Cbse > Class 12 > Science > Chemistry Part Ii > Class 12 Chemistry (Part Ii) Chapter 13 Amines – Quiz 1 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 12 Chemistry (Part Ii) Chapter 13 Amines Quiz 1 (60 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Which amine is less basic due to steric hindrance? A) Tertiary amine. B) Quaternary amine. C) Primary amine. D) Secondary amine. Show Answer Correct Answer: A) Tertiary amine. 2. Which reagent can be used to convert Nitrobenzene to Aniline A) KMNO4. B) Ammonia. C) Hydrogen on Palladium. D) None of the above. Show Answer Correct Answer: C) Hydrogen on Palladium. 3. What happens when Amines are dissolved in water? A) They donate a proton. B) They remain neutral. C) They accept a proton. D) They form an acidic solution. Show Answer Correct Answer: C) They accept a proton. 4. $\frac{R'2NH}{pTSA}$ A) Iminium Ion. B) Imine. C) All the above. D) None of the above. Show Answer Correct Answer: A) Iminium Ion. 5. What is the most important chemical property of amines? A) They are strong bases. B) They are weak bases. C) They are strong acids. D) They are weak acids. E) They are oxidizing acids. Show Answer Correct Answer: B) They are weak bases. 6. In the coordination complex [Ni(en)3]2+, ethylenediamine behaves as: A) Monodentate ligand. B) Bidentate ligand. C) Tridentate ligand. D) Polydentate ligand. Show Answer Correct Answer: B) Bidentate ligand. 7. What type of bond does an azo compound contain? A) Single bond. B) Ionic bond. C) Double bond. D) Triple bond. Show Answer Correct Answer: C) Double bond. 8. Reaction with bromine under sunlight is also an identification test for aromatic amines. A) TRUE. B) FALSE. C) All the above. D) None of the above. Show Answer Correct Answer: B) FALSE. 9. Benzenediazonium salts give benzene on reacting with A) H$_{3}$PO$_{2}$. B) NaBH$_{4}$. C) CH$_{3}$CH$_{2}$OH. D) All of the above. Show Answer Correct Answer: D) All of the above. 10. What is the primary amine formed from benzene? A) Benzylamine. B) Toluene. C) Phenylamine. D) Aniline. Show Answer Correct Answer: D) Aniline. 11. What is the suffix used for naming Carboxylic Acids? A) -one. B) -ol. C) -amine. D) -anoic acid. Show Answer Correct Answer: D) -anoic acid. 12. What is the stability of arenediazonium salts compared to alkyldiazonium salts? A) Equally stable. B) More stable. C) Unstable. D) Less stable. Show Answer Correct Answer: B) More stable. 13. Addition of $NaBH_4$ A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 14. The following will give a precipitate with excess of bromine water A) Aniline. B) Nitrobenzene. C) Toluene. D) Bromobenzene. Show Answer Correct Answer: A) Aniline. 15. Azidation is what type of reduction A) Acylation. B) Alkylation. C) All the above. D) None of the above. Show Answer Correct Answer: B) Alkylation. 16. Secondary and tertiary amines can be chemically distinguised by ..... A) Isocyanide test. B) Hinsberg test. C) Fehling's test. D) Teollen's test. Show Answer Correct Answer: B) Hinsberg test. 17. Benzenediazonium chloride is stable at A) 373-378K. B) 273-278K. C) 298K. D) Below 273K. Show Answer Correct Answer: B) 273-278K. 18. Explain the concept of aromatic amines and provide an example. A) Acetone. B) Methanol. C) Ethanol. D) Aniline. Show Answer Correct Answer: D) Aniline. 19. Describe the process of synthesizing tertiary amines. A) Tertiary amines are produced by hydrolyzing nitriles in the presence of water. B) Tertiary amines can be synthesized by reducing primary amines with lithium aluminum hydride. C) Tertiary amines are synthesized by alkylating secondary amines with alkyl halides. D) Tertiary amines are formed by the direct reaction of ammonia with alkyl halides. Show Answer Correct Answer: C) Tertiary amines are synthesized by alkylating secondary amines with alkyl halides. 20. Polymers not made by condensation polymerisation A) Polyester. B) Nylon. C) PVC. D) Kevlar. Show Answer Correct Answer: C) PVC. 21. What is the general formula for amines? A) R-NH4. B) R-NH2. C) R-NH. D) R-NH3. Show Answer Correct Answer: B) R-NH2. 22. The high basicity of ethylenediamine compared to ammonia is mainly due to: A) Resonance stabilization. B) Intramolecular hydrogen bonding. C) +I effect of two-CH2-groups. D) Electron-donating ethylene chain. Show Answer Correct Answer: C) +I effect of two-CH2-groups. 23. Which reagent is used to form acyl chlorides from carboxylic acids? A) PCl3 and heat. B) NaOH. C) HCl. D) H2SO4. Show Answer Correct Answer: A) PCl3 and heat. 24. What is a chiral carbon? A) A carbon bonded to 4 of the same group. B) A carbon with a triple bond. C) A carbon that can be removed easily. D) A carbon joined to 4 different groups. Show Answer Correct Answer: D) A carbon joined to 4 different groups. 25. Which of the following is not a product of the substitution reactions of aryl diazonium salts shown in the image? A) An aryl fluoride. B) An aryl amine. C) An aryl iodide. D) An aryl cyanide. Show Answer Correct Answer: B) An aryl amine. 26. Which of the following amines is a tertiary amine? A) Trimethylamine. B) Ethylamine. C) Methylamine. D) Dimethylamine. Show Answer Correct Answer: A) Trimethylamine. 27. What is the product of the reaction between phenylamine and HCl? A) Phenylamine sulfate. B) Phenylamine chloride. C) Phenylamine hydroxide. D) Phenylammonium chloride. Show Answer Correct Answer: D) Phenylammonium chloride. 28. What is the pKa value of aniline? A) ~4.6. B) ~7.0. C) ~10.5. D) ~14.0. E) None of the above. Show Answer Correct Answer: A) ~4.6. 29. Which of these types of compounds forms salts with acids? A) Alcohols. B) Carboxylic esters. C) Amines. D) Ethers. E) Ketones. Show Answer Correct Answer: C) Amines. 30. Gabriel phthalimide synthesis produces A) Quaternary ammonium salt. B) Primary amine. C) Tertiary amine. D) Secondary amine. Show Answer Correct Answer: B) Primary amine. 31. Which carboxylic acid can be further oxidized with Fehling's reagent? A) Butanoic acid. B) Methanoic acid. C) Ethanoic acid. D) Propanoic acid. Show Answer Correct Answer: B) Methanoic acid. 32. Identify the molecule that is not an amine. A) A molecule with three hydrogen atoms attached to a nitrogen atom. B) A molecule with two hydrogen atoms and one alkyl group attached to a nitrogen atom. C) A molecule with two alkyl groups attached to a nitrogen atom. D) A molecule with three alkyl groups attached to a nitrogen atom. Show Answer Correct Answer: A) A molecule with three hydrogen atoms attached to a nitrogen atom. 33. What is the major product of reaction between N, N-dimethylmethanamine and chloromethane? A) Tetramethylammonium chloride. B) N, N, N-trimethylmethanamine. C) N, N, N, N-tetramethylammonium chloride. D) Methylammonium chloride. Show Answer Correct Answer: A) Tetramethylammonium chloride. 34. Lone pair in amine functional group refers to ..... A) Electrons which cause negative charge in nitrogen atom. B) Electrons which cause unstable nitrogen atom. C) Electrons in covalent bonding with other atom. D) Electrons in nitrogen atom without bonding with other atom. Show Answer Correct Answer: D) Electrons in nitrogen atom without bonding with other atom. 35. What is the most basic aromatic amine's common name? A) Aminobenzene. B) Benzylamine. C) Aniline. D) Benzenamine. Show Answer Correct Answer: C) Aniline. 36. Which is the incorrect statement in the following? A) Dimethylamine is less basic than methylamine . B) Ethylamine has higher boiling point than propane. C) Amines from hydrogen bonds. D) Methylamine is more basic than ammonia. Show Answer Correct Answer: A) Dimethylamine is less basic than methylamine . 37. In the carbylamine reaction, chloroform acts as: A) Oxidizing agent. B) Carbon source. C) Acid source. D) Solvent. Show Answer Correct Answer: B) Carbon source. 38. The polysaccharide is A) Sucrose. B) Maltose. C) Galactose. D) Cellulose. Show Answer Correct Answer: D) Cellulose. 39. Nitration of aniline in presence of H$_{2}$SO$_{4 }$at 288K gives substantial amount of m-Nitroaniline because A) Anillium ion is m-directing. B) Aniline is m-directing. C) Both of the above. D) None of above. Show Answer Correct Answer: A) Anillium ion is m-directing. 40. Which class of amine can form intermolecular hydrogen bonds A) 1$^{o }$only. B) 2$^{o}$ only. C) 3$^{o}$ only. D) 1$^{o}$ and 2$^{o}$. E) 2$^{o}$ and 3$^{o}$. Show Answer Correct Answer: D) 1$^{o}$ and 2$^{o}$. 41. Which of the following amines do you expect to have the highest basic strength in gaseous phase? A) Ammonia. B) Dimethyl amine. C) Triethyl amine. D) Methyl amine. Show Answer Correct Answer: C) Triethyl amine. 42. Identify the correct IUPAC name A) (CH$_{3}$CH$_{2}$)$_{2}$NCH$_{3}$ = N-ethyl-N-methylethanamine. B) (CH$_{3}$)$_{2}$CHNH$_{2}$ = 2, 2-dimethyl-N-propanamine. C) CH$_{3}$NHCH(CH$_{3}$)$_{2}$ = N-methylpropan-2-amine. D) (CH$_{3}$)$_{3}$CNH$_{2}$ = 2-methylpropan-2-amine. Show Answer Correct Answer: A) (CH$_{3}$CH$_{2}$)$_{2}$NCH$_{3}$ = N-ethyl-N-methylethanamine. 43. What is the basis for classifying amines as primary, secondary, or tertiary? A) The number of carbon atoms bonded directly to the nitrogen atom. B) The number of carbon atoms bonded to a carbon bearing nitrogen. C) The number of nitrogen atoms present. D) None of the above. Show Answer Correct Answer: A) The number of carbon atoms bonded directly to the nitrogen atom. 44. What is the product of the reaction between ethylamine and HCl? A) Ethylammonium chloride. B) Ethylamine sulfate. C) Ethylamine chloride. D) Ethylamine hydroxide. Show Answer Correct Answer: A) Ethylammonium chloride. 45. What is the product when acyl chlorides react with ammonia? A) Ester. B) Carboxylic acid. C) Alcohol. D) Amide. Show Answer Correct Answer: D) Amide. 46. Which of the following is an example of a measurement taken during continuous monitoring experiments? A) Melting point of the reactants. B) Density of the solution. C) Boiling point of the mixture. D) Volume of gas produced. Show Answer Correct Answer: D) Volume of gas produced. 47. How can you prepare amines using the reduction of nitro compounds? A) By using carbon dioxide in the presence of a metal catalyst. B) By using nitrogen gas in the presence of a metal catalyst. C) By using oxygen gas in the presence of a metal catalyst. D) By using hydrogen gas in the presence of a metal catalyst like palladium or platinum. Show Answer Correct Answer: D) By using hydrogen gas in the presence of a metal catalyst like palladium or platinum. 48. What is the product when an ester is hydrolyzed under acidic conditions? A) Amine. B) Alcohol and carboxylic acid. C) Ketone. D) Aldehyde. Show Answer Correct Answer: B) Alcohol and carboxylic acid. 49. In aliphatic amines, the +I effect of alkyl groups tends to: A) Delocalize lone pair on nitrogen. B) Stabilize the conjugate acid. C) Decrease electron density on nitrogen. D) Increase electron density on nitrogen. Show Answer Correct Answer: D) Increase electron density on nitrogen. 50. (CH$_{3}$)$_{3}$N what type of amine is it? A) Primary. B) Secondary. C) Tertiary. D) None of the above. Show Answer Correct Answer: C) Tertiary. 51. Did you like my presentation? A) Yes. B) I didn't even listen. C) All the above. D) None of the above. Show Answer Correct Answer: A) Yes. 52. Which of the following describes the formation of polyesters? A) Between a diol and dicarboxylic acid. B) Between a diamine and dicarboxylic acid. C) Between amino acids. D) Between a diol and diamine. Show Answer Correct Answer: A) Between a diol and dicarboxylic acid. 53. Which of the following pairs will react to form benzenadiazonium chloride under suitable conditions? A) Methylbenzene and HNO$_{3}$/HCI. B) Nitrobenzene and SN/HCI. C) Aniline and NaNO$_{2}$/HCI. D) Aniline and HNO$_{3}$/HCI. Show Answer Correct Answer: C) Aniline and NaNO$_{2}$/HCI. 54. Define the term rate determining step and describe how it relates to the rate equation. A) The rate determining step is the step that occurs at equilibrium. B) The rate determining step is the step with the highest energy requirement. C) The rate determining step is the fastest step in a reaction mechanism. D) The rate determining step is the slowest step in a reaction mechanism. Show Answer Correct Answer: D) The rate determining step is the slowest step in a reaction mechanism. 55. If the Kb value is high, it indicates A) Neutral compound. B) Weak acid. C) A strong base. D) A weak base. Show Answer Correct Answer: C) A strong base. 56. Choose the effect which does not affect the basic strength of amines in aqueous phase. A) Solvation effect. B) Steric effect. C) Resonance effect. D) Inductive effect. Show Answer Correct Answer: C) Resonance effect. 57. The following methods can be used to prepare ethanamine except for A) 1-bromoethane + NH$_{3}$. B) Ethanenitrile + LiAlH$_{4}$. C) 1-bromoethane + KCN + LiAlH$_{4}$. D) Ethanamide + LiAlH$_{4}$. Show Answer Correct Answer: C) 1-bromoethane + KCN + LiAlH$_{4}$. 58. Estimated pK$_{a }$of diethylamine is ..... A) 35-38. B) 24-26. C) 42-45. D) 10-11. Show Answer Correct Answer: D) 10-11. 59. State the reagent used to convert butanoic acid to butanamide. A) Ammonia. B) Nitric acid. C) Water. D) Nitrous acid. Show Answer Correct Answer: A) Ammonia. 60. Assertion (A):Primary aromatic amines react with nitrous acid at room temperature to form diazonium salts.Reason (R):The stability of aromatic diazonium salts is due to resonance. A) Ssh. B) Both Assertion (A) and Reason (R) are true but Reason is not the correct explanation of the Assertion. C) Assertion (A) is true, but Reason (R) is false. D) Assertion (A) is false, but Reason (R) is true. Show Answer Correct Answer: D) Assertion (A) is false, but Reason (R) is true. 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