ORGANIC CHEMISTRY MCQS: PREVIOUS NIPER PAPER : 2008-2012

1.       ONE QUESTION ON WOODWARD FIESER REACTION- 2012

2.       0NE QUESTION ON ESTER FORMATION- 2012

3.       0NE QUESTION ON CANNIZARO REACTION-2012

4.       PRODUCT FORMATION AFTER REACTION OF BENZENE AND N-PROPYL CHLORIDE IN PRESENCE OF AlCl3-2012

5.       ALLENE HYBIRDISATION-2012

6.       NUCLEOPHILIC SUBSTITUTION TAKE PLACE THROUGH BENZYNE FORMATION, IN WHICH OF THE FOLLOWING: 2011 A.PICRIC ACID      B.NITRO BENZENE     C.PARA METHOXY NITRO BENZENE

7.       BOND STRENGTH ORDER: 2011 1.       C-H     2. C-C      3. H-H     4. C-CL

8.       SELECT MORE OF THE FOLLOWING:  1. PYRIDINE    2.ANILINE     3.PYRROLE     4. N,N DIMETHYL ANILINE: 2011

9.       ONE QUESTION ON SN2 REACTION: 2011

10.   CYCLOADDITION OCCUR BY……2011 ANSWER  DIELS ALDER REACTION

11.   NON MIRROR ISOMER IMAGES ARE CALLED: 2010

12.   WHICH IS THE OPTICAL ISOMER: 2010 A.      BIPHENYLS   B.ARENES    C. MESO TARTARIC ACID     D. NONE

13.   GEOMETRY OF CCL4 (SYMMETRY SHOWN BY CARBON TETRA CHLORIDE): 2010

14.   SELECT THE AMPHIPATHIC: 2010 A.NUCLEOTIDE B.FATTY ACID C.AMINO ACID

15.   CIS AND TRANS CITRIC ACID ARE:2010 DIASTERIOISOMER    OR ENANTIOMER

16.   0NE QUESTION ON: IDENTIFY  GIVEN CONFIGURATION IS R OR S:2010

17.   GIVE DIFFERENT CLASS OF GROP:2010 A.      SANDMAYER REACTION B.      VELSMEIR REACTION C.      GATTERMAN REACTION D.      RIMMER TIMAN REACTION

18.   SELECT THE HIGHLY ELECTRO DONATING GROUP:2010 A.CN    B. NH2

19.   ARRANGE ACCORDING TO BOND ENERGY:2010 A.      C-H B.      H-CL C.      C-CL D.      CL-CL

20.   C6H5COCH3 IS CONVERTED INTO C6H5CH2CH3 IN WHICH REACTION:2010

21.   ETHYLACETOACETATE IS THE PRODUCT OF WHICH REACTION:2010

22.   HOMO ANNULAR DIENE: SELECT WHICH OF THE FOLLOWING:2010

23.   3 QUESTION ON WOOD WARD FISCHER REACTION:2010

24.   IDENTIFY THE FIGURE(figure was given): 2010 A.      HALF CHAIR B.      TWISTED BOAT C.      BOAT

25.   ONE QUESTION ON SN2 REACTION: 2009

26.   2 QUESTION ON CIS AND TRANS CONFIGURATION: 2009

27.   2 QUESTION ON R AND S CONFIGURATION:2009

28.   DOUBLE BOND DETERMINED BY:2009 A.      OZONOLYSIS B.      BROMINATION C.      HYDROGENATION

29.   ANTIMARKONIKOV ADDITION OF HBr TO Styrene GIVES:2009 ANSWER:Ph-CH2-CH2-Br

30.   POLYESTER IS MADE OF:2009

31.   CIS AND TRANS CINNAMIC ACID ARE: ENANTIOMER OR DIASTEREOISOMER:2009

32.   FROM GIVEN STRUCTURE: SELECT THE TYPE OF CONFIGURATION:2009 ANSWER: SAWHORSE CONFIGURATION

33.   ACTIVE ION IN FREIDAL CRAFT REACTION IS: ANSWER: CATION:2009

34.   SELECT THE MOST POLAR: 2008 A.ACETONE    2.CHLOROFORM    3.WATER    4.BENZENE

35.   0NE QUESTION ON DEFINATION OF ENANTIOMER:2008

36.   0NE QUESTION ON DEFINATION OF DIASTERIOISOMER:2008

37.   0NE QUESTION ON DEFINATION OF ANOMERS:2008

38.   0NE QUESTION ON DEFINATION OF ATROPOISOMER:2008

39.   IN SN2 REACTION C=O GROUP AFFECTED BY: BY NUCLEOPHILES PRESENCE:2008

40.   GIVE THE RELATION BETWEEN TO GIVEN STRUCTURE:2008 A.      ANOMER     B.EPIMERS     C. ENANTIOMERS        DIASTERIOISOMER

41.   GIVEN CONFIGURATION IS OF TYPE:2008 ANSWER: SAWHORSE PROJECTION

42.   CYCLOADDITION IS SEEN IN WHICH REACTION:2008 A.ALDOL CONDENSATION B.DIEL ELDERS REACTION C.CANNIZZARO REACTION

43.   INTERMEDIATE FORMED IN WITTIG REACTION: 2008