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Page 1 PART-I (Single Correct MCQs) 1. An organic amino compound reacts with aqueous nitrous acid at low temperature to produce an oily nitrosoamine. The compound is (a) CH 3 NH 2 (b) CH 3 CH 2 NH 2 (c) CH 3 CH 2 NHCH 2 CH 3 (d) (CH 3 CH 2 ) 3 N 2. Which of the following statements are correct ? (i) In Sandmeyer reaction nucleophiles like Cl – , Br – and CN – are indroduced in benzene ring in the presence of Cu + ion (ii) In Gattermann reaction nucleophiles are introduced in benzene ring in the presence of copper powder and HCl. (iii) The yield in Gattermann reaction is found to be better than Sandmayer reaction. (a) (i) and (ii) (b) (i), (ii) and (iii) Page 2 PART-I (Single Correct MCQs) 1. An organic amino compound reacts with aqueous nitrous acid at low temperature to produce an oily nitrosoamine. The compound is (a) CH 3 NH 2 (b) CH 3 CH 2 NH 2 (c) CH 3 CH 2 NHCH 2 CH 3 (d) (CH 3 CH 2 ) 3 N 2. Which of the following statements are correct ? (i) In Sandmeyer reaction nucleophiles like Cl – , Br – and CN – are indroduced in benzene ring in the presence of Cu + ion (ii) In Gattermann reaction nucleophiles are introduced in benzene ring in the presence of copper powder and HCl. (iii) The yield in Gattermann reaction is found to be better than Sandmayer reaction. (a) (i) and (ii) (b) (i), (ii) and (iii) (c) (ii) and (iii) (d) (i) and (iii) 3. Consider the following sequence of reactions : The compound [A] is (a) CH 3 CH 2 CN (b) CH 3 NO 2 (c) CH 3 NC (d) CH 3 CN 4. The correct order of basicity of the following compounds (a) B > A > C (b) A > B > C (c) C > A > B (d) C > B > A 5. Which of the following compounds is most basic? (a) (b) (c) (d) 6. Z in the above reacting sequence is (a) Page 3 PART-I (Single Correct MCQs) 1. An organic amino compound reacts with aqueous nitrous acid at low temperature to produce an oily nitrosoamine. The compound is (a) CH 3 NH 2 (b) CH 3 CH 2 NH 2 (c) CH 3 CH 2 NHCH 2 CH 3 (d) (CH 3 CH 2 ) 3 N 2. Which of the following statements are correct ? (i) In Sandmeyer reaction nucleophiles like Cl – , Br – and CN – are indroduced in benzene ring in the presence of Cu + ion (ii) In Gattermann reaction nucleophiles are introduced in benzene ring in the presence of copper powder and HCl. (iii) The yield in Gattermann reaction is found to be better than Sandmayer reaction. (a) (i) and (ii) (b) (i), (ii) and (iii) (c) (ii) and (iii) (d) (i) and (iii) 3. Consider the following sequence of reactions : The compound [A] is (a) CH 3 CH 2 CN (b) CH 3 NO 2 (c) CH 3 NC (d) CH 3 CN 4. The correct order of basicity of the following compounds (a) B > A > C (b) A > B > C (c) C > A > B (d) C > B > A 5. Which of the following compounds is most basic? (a) (b) (c) (d) 6. Z in the above reacting sequence is (a) List - I (Compounds) List - II (Reactions) (1) CH 3 CH 2 CH 2 CH 2 NH 2 (i) alkaline hydrolysis (2) (ii) with KOH (alcohol) and CHCl 3 produces bad smell (3) CH 3 CH 2 COOCH 3 (iii) gives white ppt. with ammonical AgNO 3 (4) CH 3 CH(OH)CH 3 (iv) with Lucas reagent cloudiness appears after 5 minutes (1) (2) (3) (4) (a) (iv) (ii) (iii) (i) (b) (ii) (i) (iv) (iii) (c) (iii) (ii) (i) (iv) (d) (ii) (iii) (i) (iv) (b) (c) (d) 7. Match the compounds given in List - I with their characteristic reactions given in List - II. Select the correct option. Options : 8. Which one of the following on reduction with lithium aluminium hydride yields a secondary amine? (a) Methyl isocyanide (b) Acetamide (c) Methyl cyanide (d) Nitroethane 9. Aniline reacts with phosgene and KOH to form Page 4 PART-I (Single Correct MCQs) 1. An organic amino compound reacts with aqueous nitrous acid at low temperature to produce an oily nitrosoamine. The compound is (a) CH 3 NH 2 (b) CH 3 CH 2 NH 2 (c) CH 3 CH 2 NHCH 2 CH 3 (d) (CH 3 CH 2 ) 3 N 2. Which of the following statements are correct ? (i) In Sandmeyer reaction nucleophiles like Cl – , Br – and CN – are indroduced in benzene ring in the presence of Cu + ion (ii) In Gattermann reaction nucleophiles are introduced in benzene ring in the presence of copper powder and HCl. (iii) The yield in Gattermann reaction is found to be better than Sandmayer reaction. (a) (i) and (ii) (b) (i), (ii) and (iii) (c) (ii) and (iii) (d) (i) and (iii) 3. Consider the following sequence of reactions : The compound [A] is (a) CH 3 CH 2 CN (b) CH 3 NO 2 (c) CH 3 NC (d) CH 3 CN 4. The correct order of basicity of the following compounds (a) B > A > C (b) A > B > C (c) C > A > B (d) C > B > A 5. Which of the following compounds is most basic? (a) (b) (c) (d) 6. Z in the above reacting sequence is (a) List - I (Compounds) List - II (Reactions) (1) CH 3 CH 2 CH 2 CH 2 NH 2 (i) alkaline hydrolysis (2) (ii) with KOH (alcohol) and CHCl 3 produces bad smell (3) CH 3 CH 2 COOCH 3 (iii) gives white ppt. with ammonical AgNO 3 (4) CH 3 CH(OH)CH 3 (iv) with Lucas reagent cloudiness appears after 5 minutes (1) (2) (3) (4) (a) (iv) (ii) (iii) (i) (b) (ii) (i) (iv) (iii) (c) (iii) (ii) (i) (iv) (d) (ii) (iii) (i) (iv) (b) (c) (d) 7. Match the compounds given in List - I with their characteristic reactions given in List - II. Select the correct option. Options : 8. Which one of the following on reduction with lithium aluminium hydride yields a secondary amine? (a) Methyl isocyanide (b) Acetamide (c) Methyl cyanide (d) Nitroethane 9. Aniline reacts with phosgene and KOH to form (a) (b) (c) (d) 10. When aniline reacts with oil of bitter almonds (C 6 H 5 CHO) condensation takes place and benzal derivative is formed. This is known as (a) Million’s base (b) Schiff’s reagent (c) Schiff’s base (d) Benedict’s reagent 11. Which reaction sequence would be best to prepare 3-chloroanilne from benzene ? (a) Chlorination, nitration, reduction (b) Nitration, chlorination, reduction (c) Nitration, reduction, chlorination (d) Nitration, reduction, acetylation, chlorination, hydrolysis 12. The reduction of nitro compounds is most preferred in the presence of (a) Pd/H 2 in ethanol (b) Sn + HCl (c) finely divided Ni (d) iron scrap and HCl 13. Match the compounds in List I with their nature from List II, as seen in aqueous medium Page 5 PART-I (Single Correct MCQs) 1. An organic amino compound reacts with aqueous nitrous acid at low temperature to produce an oily nitrosoamine. The compound is (a) CH 3 NH 2 (b) CH 3 CH 2 NH 2 (c) CH 3 CH 2 NHCH 2 CH 3 (d) (CH 3 CH 2 ) 3 N 2. Which of the following statements are correct ? (i) In Sandmeyer reaction nucleophiles like Cl – , Br – and CN – are indroduced in benzene ring in the presence of Cu + ion (ii) In Gattermann reaction nucleophiles are introduced in benzene ring in the presence of copper powder and HCl. (iii) The yield in Gattermann reaction is found to be better than Sandmayer reaction. (a) (i) and (ii) (b) (i), (ii) and (iii) (c) (ii) and (iii) (d) (i) and (iii) 3. Consider the following sequence of reactions : The compound [A] is (a) CH 3 CH 2 CN (b) CH 3 NO 2 (c) CH 3 NC (d) CH 3 CN 4. The correct order of basicity of the following compounds (a) B > A > C (b) A > B > C (c) C > A > B (d) C > B > A 5. Which of the following compounds is most basic? (a) (b) (c) (d) 6. Z in the above reacting sequence is (a) List - I (Compounds) List - II (Reactions) (1) CH 3 CH 2 CH 2 CH 2 NH 2 (i) alkaline hydrolysis (2) (ii) with KOH (alcohol) and CHCl 3 produces bad smell (3) CH 3 CH 2 COOCH 3 (iii) gives white ppt. with ammonical AgNO 3 (4) CH 3 CH(OH)CH 3 (iv) with Lucas reagent cloudiness appears after 5 minutes (1) (2) (3) (4) (a) (iv) (ii) (iii) (i) (b) (ii) (i) (iv) (iii) (c) (iii) (ii) (i) (iv) (d) (ii) (iii) (i) (iv) (b) (c) (d) 7. Match the compounds given in List - I with their characteristic reactions given in List - II. Select the correct option. Options : 8. Which one of the following on reduction with lithium aluminium hydride yields a secondary amine? (a) Methyl isocyanide (b) Acetamide (c) Methyl cyanide (d) Nitroethane 9. Aniline reacts with phosgene and KOH to form (a) (b) (c) (d) 10. When aniline reacts with oil of bitter almonds (C 6 H 5 CHO) condensation takes place and benzal derivative is formed. This is known as (a) Million’s base (b) Schiff’s reagent (c) Schiff’s base (d) Benedict’s reagent 11. Which reaction sequence would be best to prepare 3-chloroanilne from benzene ? (a) Chlorination, nitration, reduction (b) Nitration, chlorination, reduction (c) Nitration, reduction, chlorination (d) Nitration, reduction, acetylation, chlorination, hydrolysis 12. The reduction of nitro compounds is most preferred in the presence of (a) Pd/H 2 in ethanol (b) Sn + HCl (c) finely divided Ni (d) iron scrap and HCl 13. Match the compounds in List I with their nature from List II, as seen in aqueous medium List I List II I. Acetamide A. Acidic II. Benzonitrile B. Basic III. Triethylamine C. Neutral IV. Phenol (a) I–C; II–C; III–B; IV–A (b) I–B; II–C; III–C; IV–A (c) I–C; II–B; III–B; IV–C (d) I–A; II–A; III–C; IV–B 14. The correct order of basicities of the following compounds is 1 2 3 4 (a) 2 > 1 > 3 > 4 (b) 1 > 3 > 2 > 4 (c) 3 > 1 > 2 > 4 (d) 1 > 2 > 3 > 4 15. Which of the following reactions will not give a primary amine? (a) (b) (c) (d) 16 Indicate which nitrogen compound amongst the following would undergo Hoffmann reaction (i.e.., reaction with Br 2 and strong KOH) to furnish the primary amine (R – NH 2 ) (a) RCONHCH 3 (b) RCOONH 4 (c) RCONH 2Read More
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