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Organic Chemistry - Some Basic Principles and Techniques
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Organic Chemistry - Some Basic Principles and Techniques
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25 Questions

1. Which of the following is an optically activecompound? [1988]
2. Isomers of a substance must have the same
3. The chirality of the compound HHCCl 3 BrCis [2005]
4. Which one is most reactive towardselectrophilic reagent? [2010]
5. Which one of the following is a techniquemost suitable for purification of cyclohexanonefrom a mixture containing benzoic acid - isoamylalcohol - cyclohexane and cyclohexanone?[1997]
6. The state of hybridization of C 2 - C3 - C5 andC6 of the hydrocarbon - CH3 CH= CHC{CH 7 5 4 2 1CCHCH 3 CH 3 CH 3 3 | | 6 | is in the followingsequence: [2009]
7. The restricted rotation about carbon carbondouble bond in 2-butene is due to [1993]
8. Which of the following compounds reactsslower in electrophilic substitution? [2000]
9. Which one of the following compounds isresistant to nucleophilic attack by hydroxylions?
10. In steam distillation of toluene - the pressurefor toluene in vapour is [2001]
11. Geometrical isomers differ in [2002]
12. Base strength of: HCCH3 2 4 HCCH 2 4 andHCC4 { is in the order of: [2008]
13. An important chemical method to resolve aracemic mixture makes use of the formation of[1994]
14. Given are cyclohexanol acetic acid (II) - 2 - 4 - 6 -“ trinitrophenol (III) and phenol (IV) In thesethe order of decreasing acidic character will be:[2010]
15. Names of some compounds are givenWhichone is not correct in IUPACsystem? [2005]
16. An example of electrophilic substitutionreaction is [1994]
17. Which is a chiral molecule? [1999]
18. When the hybridization state of carbon atomchanges from sp 3 to sp2 and finally to sp - theangle between the hybridized orbitals [1993]
19. The shortest C-“ C bond distance is found in
20. The best method for the separation ofnaphthalene and benzoic acid from theirmixture is: [2005]
21. Which of the following conformers forethylene glycol is most stable? [2010]
22. The correct order regarding theelectronegativity of hybrid orbitals of carbon is[2006]
23. A is a lighter phenol and B is an aromaticcarboxylic acidSeparation of a mixture of A andB can be carried out easily by using a solution of
24. Correct order of stability is: [2000]
25. The molecular formula of diphenyl methane - CH2 - is C13H 12How many structural isomers arepossible when one of the hydrogens is replacedby a chlorine atom? [2004]

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