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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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1. 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]
2. The correct order of increasing reactivityof C-“ Xbond towards nucleophile in thefollowing compounds is: XNO2 NO2 X(CH 3) 3 C-“X - (CH 3) 2CH-“ X (II) (III) (IV) [2010]
3. Base strength of: HCCH3 2 4 HCCH 2 4 andHCC4 { is in the order of: [2008]
4. Consider the following compounds.C6H5COCl (ii) ONCOCl 2 (iii) HCCOCl 3 (iv)OHCCOCl The correct decreasing order of theirreactivity towards hydrolysis is [2007]
5. Tautomerism will be exhibited by [1997]
6. Which of the following acids does notexhibit optical isomerism? [2012]
7. Which of the following compounds is notchiral? [1998]
8. Which one of the following is a techniquemost suitable for purification of cyclohexanonefrom a mixture containing benzoic acid - isoamylalcohol - cyclohexane and cyclohexanone?[1997]
9. ACname of the following is CH2 CHCH 2CH2 C{CH [2002]
10. An organic compound X(molecular formulaC6H7O2N) has six carbon atoms in a ring system - two double bonds and a nitro group assubstituent - X is [1990]
11. Among the given compounds - the mostsusceptible to nucleophilic attack at the carbonylgroup is: [2010]
12. Astrong base can abstract an D-hydrogenfrom: [2008]
13. Kjeldahl-™s method is used in the estimation of
14. The first organic compound - synthesized inthe laboratory - was [1995]
15. Lassaigne\'s test for the detection of nitrogen fails in [1994]
16. Which one of these is not compatible witharenes? [1997]
17. Huckel\'s rule states that a monocyclic conjugated compound will be aromatic if it contains [1996]
18. Which of the following conformers forethylene glycol is most stable? [2010]
19. An example of electrophilic substitutionreaction is [1994]
20. Which of the following pairs of compoundsare enantiomers? [2003]
21. In sodium fusion test of organic compounds - the nitrogen of the organic compound isconverted into [1991]
22. How many stereoisomers does this moleculehave? CHCHCHCHCHBrCH 3 23 [2008]
23. Which one of the following can exhibit cistrans isomerism? [1989]
24. Which one of the following pairs representsstereoisomerism? [2005]
25. CH3 -“ CHCl -“ CH2 -“ CH3 has a chiral centre.which one of the following represents its Rconfiguration? [2007]

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