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Organic Chemistry Practice Test: Heterocyclic Compounds
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Heterocyclic Compounds topics include: Five membered rings, structure and source of pyridine compounds, electrophilic and nucleophilc substitution in pyridine. A heterocyclic compound is a cyclic compound that contains atoms from at least two different elements in its ring. The word "hetero" means not identical, indicating that the cyclic compound's structure has molecules that are not the same.  The ring structure of a heterocyclic compound contains carbon and other elements, such as oxygen, nitrogen, and sulfur. The simplest five-membered heterocyclic compounds are pyrrole, furan, and... Show more
Organic Chemistry Practice Test: Heterocyclic Compounds
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25 Questions

1. Which of the following is the product for the below reaction?
organic-chemistry-assessment-questions-answers-q4
2. Pyridine is a not a planner compound?
3. What is the name of the following reaction?
organic-chemistry-questions-answers-nucleophilic-substitution-pyridine-q7
4. At which position of pyridine nucleophilic substitution reaction is most preferred?
5. Electron-withdrawing groups inhibit the Chichibabin reaction. Which of the following statement is not true about this fact?
6. What will be the reagent used for the completion of the following reaction?
organic-chemistry-questions-answers-five-membered-rings-q10
7. Which of the following is the product for the below reaction?
organic-chemistry-assessment-questions-answers-q7
8. What will be the product if reaction with hydrogen gas in the presence of Raney nickel takes place?
9. In the synthesis of pyridine by Chichibabin synthesis, synthesis of acroloien is done which method?
10. By which of the following agent there will be incomplete reduction of pyridine?
11. What is the reactivity order in the following five membered heterocyclic compounds?
12. Which of the following is the correct range for the bond length in the pyridine molecule?
13. Mycobacterium tuberculosis and Escherichia coli produce nicotinic acid by condensation of which of the following compounds?
14. Why is extraction of pyridine from coal tar or as a byproduct of coal gasification ineffective?
15. What is the smallest angle in pyridine ring?
16. Which of the following five membered rings is most resonance stabilized?
17. What will be the product of the following reaction?
organic-chemistry-questions-answers-nucleophilic-substitution-pyridine-q5
18. Pyridine is a which type of heterocyclic compound from the following options?
19. Electrophilic substitution reaction of pyridine is most effective in which of the conditions?
20. Which of the following plant is the natural source of pyridine?
21. Which of the following derivative of pyridine is mostly found in mycobacterium tuberculosis?
22. The electron of Nitrogen participating in the resonance in pyridine is present in which orbital?
23. What is the name of the following reaction?
organic-chemistry-questions-answers-five-membered-rings-q9
24. Which of the following is the product for the below reaction?
organic-chemistry-assessment-questions-answers-q6
25. What is the product when pyrrole reacts with Br2 in ethanol?