M.Sc. Organic Chemistry Question Bank

1. What is the shape of Carbocation
2. Classify the following in to electrophilic and nucleophilic reagents
(i) Br+ (ii) Cl- (iii) SnCl4 (iv) H2O
3. Define Huckel rule
4. Free radicals are formed by__________clevage
5. Arrange the following in increasing stability order
(C6H5)3C+, CH2=CH-CH2+, (CH3)3C+,(C6H5)2CH+,(CH3)2CH+,CH3CH2+C6H5CH2+
6. Which of the following is more basic pyredine or trimethyl amine?
7. How many hyper conjugative structure is possible in (CH3)3C+.
8. What is the Major factors that influence the stability of carbocation, carbanion and free radical.
9. Hetro atom present in furan_____________
10. Define electrophile
11. What is the shape of carbanion.
12. Write the name of nucliophile in favoruski reaction.
13. Write the resonating structure of pyrrole
14. Which of the following is an aromatic compound

15. Define homolytic and hetrolytic cleavage
16. Pyrrole is acid or base.
17. Carbocation is formed by _____________Cleavage
18. Write the hybridization of Carbocation.
19. Complete the reaction.

20. Define the target molecule?
21. Beckman rearrangement involves the interconversion of ketooximes in to ________
22. Starting material of Rosenmund reaction is __________.
23. Electrophile in the nitration of furan___
24. Thiophene on reduction give__________
25. In pyridine undergo electrophilic substitution at the _________position.
26. Complete the reaction.

27. write the name of two protecting groups of alcohols
28. Major differences in resonance and hyperconjugation.
29.The resonance stabilization energy of benzene___
30 Define inductive effect.

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