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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 is a chiral molecule? [1999]
2. 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]
3. Which one of the following compounds isresistant to nucleophilic attack by hydroxylions?
4. If there is no rotation of plane polarised lightby a compound in a specific solvent - though tobe chiral - it may mean that [2007]
5. Which one of the following orders is correctregarding the I effect of the substituents?
6. Which one of the following pairs representsstereoisomerism? [2005]
7. In the hydrocarbon CH-“ CH= CH-“ CH-“ CCH32 {6 54321The state of hybrization of carbons 1 - 3 and 5 arein the following sequence: [2008]
8. Which one is most reactive towardselectrophilic reagent? [2010]
9. Huckel\'s rule states that a monocyclic conjugated compound will be aromatic if it contains [1996]
10. The stability of carbanions in the following:
11. Among the following compounds the onethat is most reactive towards electrophilicnitration is: [2012]
12. The structure of isobutyl group in anorganic compound is: [NEET2013]
13. The correct order regarding theelectronegativity of hybrid orbitals of carbon is[2006]
14. The correct order of reactivity towards theelectrophilic substitution of the compoundsaniline - benzene (II) and nitrobenzene (III) is
15. Which of the following is not chiral? [2006]
16. 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]
17. 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]
18. Which one of the following is a techniquemost suitable for purification of cyclohexanonefrom a mixture containing benzoic acid - isoamylalcohol - cyclohexane and cyclohexanone?[1997]
19. The most reactive compoundelectrophilic nitration is [1992]
20. Structure of the compound whoseIUPACname is 3-ethyl-2-hydroxy-4-methylhex3-en-5-ynoic acid is: [NEET2013]
21. The process of separation of a racemicmodification into d and A-enantiomers is called
22. Geometrical isomers differ in [2002]
23. Which of the following acids does notexhibit optical isomerism? [2012]
24. In steam distillation of toluene - the pressurefor toluene in vapour is [2001]
25. The Cl -“ C-“ Cl angle in 1 - 1 - 2 - 2tetrachloroethene and tetrachloromethane respectively will be about [1988]

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