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GRE Chemistry Organic
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GRE Chemistry Organic
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25 Questions

1. Cyclic ether

2. Chiral - with superimposable mirror image

3. Differ in rotation about sigma bonds

4. Reduces Ar-CH3 to -COOH

5. Best with electron withdrawing group ortho/para to substitution site

6. Differ in fixed geometrical arrangement of atoms

7. Bound to adjacent atoms

8. Formation of salcohol from alkene

9. Reduces one bond of benzene ring

10. Split an alkene into 2 carbonyls

11. Non-superimposable mirror image

12. R-NH2 + NaNO2/HCl --> R-N=N+ Cl-

13. Oxidize to -CHO

14. Forms carboxylic acid; releases N

15. One carbon away from aryl group can be reduced with Pd / H2

16. Ch2I2 - Zn(Cu)

17. Can protect a ketone

18. Nucleophile adds to ketone (forming alcohol)

19. Cycloformation

20. R2C=N-OH

21. Reacts with alkene to form oxirane

22. Splits an ether into alkyl halides

23. Benzaldehyde

24. Less hindered carbon center; chiral inversion

25. Oxidize to -COOH