Basics of organic reaction mechanism
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Basics of organic reaction mechanism questions with answers

86 multiple-choice questions. Open any question for its answer and explanation.

  1. The major product formed in the reaction of benzoic acid with isobutylene in the presence of catalytic amount of sulphuric acid is A. B. C. D.
  2. Among the following, the optically inactive compound is A. B. C. D.
  3. In the following reaction, the major product [X] is A. B. C. D.
  4. Among the following amino acids, the (R) -enantiomer is represented by A. B. C. D.
  5. The major product of the acetylation of salicylic acid with Ac2O/H+ followed by heating with anhydrous AlCl3 is A. B. C. D.
  6. The major stereoisomer obtained in the reaction of (S)-2 phenylpropanal with MeMgBr is A. B. C. D.
  7. The major stereoisomer P obtained in the following reaction is A. B. C. D.
  8. The major product P of the following reaction is A. B. C. D.
  9. The major product P of the given reaction is A. B. C. D.
  10. Among the bicycle [3.3.0] octane diones given below, which one will exhibit five signals in the broad band decoupled 13C NMR spectrum? A. B. C. D.
  11. In the reaction shown below, identify the correct combination of the intermediate P and the product Q. A. B. C. D.
  12. The major product formed in the reaction of cyclo pentadiene with a mixture of dichloro acetyl chloride and triethylamine is A. B. C. D.
  13. Among the following the acid which undergoes fastest decarboxylation is A. B. C. PhCOOH D.
  14. Among the following, the most stable isomer for 3-methoxycydohexanol is A. B. C. D.
  15. The major product formed in the following reaction is A. B. C. 50 : 50 mixture of above two compounds D.
  16. Phenol on reaction with formaldehyde and dimethyl amine mainly gives A. B. C. D.
  17. The major product formed in the reaction of 1, 5-cyclooctadiene with 0.5 equivalent of diborane is A. B. C. D.
  18. The following tetraene upon photolysis gives A. B. C. D.
  19. Pyridine undergoes electrophilic nitration at elevated temperatures to give the following as a major product A. B. C. D.
  20. The compound which on reacting with aniline will not form an acetanilide is A. B. C. D.
  21. The reaction of cyclooctyne with HgSO4 in the presence of aqueous H2SO4 gives A. B. C. D.
  22. The most stable conformation of the following compound is A. B. C. D.
  23. In the reaction, the major product [X] is A. B. C. D.
  24. In the reaction sequence, the major products [X] and [Y] respectively are A. B. C. D.
  25. In the reactions, the major product X and Y respectively, are A. B. C. D.