CSIR-UGC-NET/JRF GATE CHEMISTRY TEST : GENERAL ORGANIC CHEMISTRY (GOC)

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1 2 1 SIR-UG-ET/JRF GATE EMISTRY TEST : GEERAL RGAI EMISTRY (G) Time 00: 50 our Date : M.M. : 60 ISTRUTI : 1. There are Two Parts. Part-A contains 10 objective type questions, each question carry 2 marks and Part-B contains 10 objective type questions, each question carry 4 marks. 2. There is negative 25% will be deducted for each wrong answer. 3. Attempt all the questions, use of calculator is not allowed. PART - A 1. Arrange the order of basicity of the following molecules ( 3) 3 Sn 2 ( 3) 3 Si 2 () ( 3) 3 2 (a) A > > B (b) > B > A (c) B > A > (d) A > B > ( ( 3 ) 3 ) () The correct order of basicity is (a) A > B > > D (b) D > > A > B (c) D > > B > A (d) > B > A > D 3. The correct order of nucleophilicity is (a) 65Se 65S 65 (b) 65 65S 65Se (c) 65 65Se 65S (d) 65S 65Se Arrange the order of nucleophilicity in increasing order: (a) < F < 2 < 3 (b) < 2 < F < 3 (c) 3 < 2 < < F (d) < < F < 3 South Delhi : 28-A/11, Jia Sarai, ear-iit auz Khas, ew Delhi-16, Ph : , orth Delhi : 33-35, Mall Road, G.T.B. agar (pp. tro Gate o. 3), Delhi-09, Ph: ,

2 2 5. Arrange the following in order of their increasing stretching frequency: (I) (II) (III) (a) I < III < II (b) I < II < III (c) III < II < I (d) II < III < I 6. Arrange the acidic character of the following caroboxylic acid: (I) (II) (III) (IV) (a) A < B < < D (b) D < < B < A (c) < A < B < D (d) B < A < < D 7. Which of the following interaction is not related with hyperconjugation: * * (a) (b) (c) p (d) * 8. Arrange the order of basicity of the following compounds: () (a) A < B < < D (b) B < < D < A (c) A < B < D < (d) D < < B < A 9. Which of the following statement is not correct: (a) The order of nucleophilicity is R < R S < R Se (b) The order of basicity is R Se < R S < R (c) The order of basicity and nucleophilicity both are same for above mentioned species (d) The order of polarization of donor atom is R Se > R S > R 10. Arrange the order of electrophilic attack for the following compounds: F 3 l 3 Br 3 I 3 () (a) D < < B < A (b) A < B < < D (c) D < < A < B (d) A < B < D < South Delhi : 28-A/11, Jia Sarai, ear-iit auz Khas, ew Delhi-16, Ph : , orth Delhi : 33-35, Mall Road, G.T.B. agar (pp. tro Gate o. 3), Delhi-09, Ph: ,

3 11. onsider the following compounds PART - B 3 Ph Ph 2 () Which of the following statement is true: (a) the rate of alkaline hydrolysis is faster than that of (b) the rate of alkaline hydrolysis of is faster than that of () (c) the rate of alkaline hydrolysis of = (d) the rate of alkaline hydrolysis of () is faster than that of 12. onsider the hydrolysis of bicyclic compound and monocyclic compound 3 X X Which of the following statement is true about the above hydrolysis reaction (a) the hydrolysis of compound is slower than that of compound (b) the hydrolysis of compound is slower than compound (c) the hydrolysis of compound = hydrolysis of compound (d) none of these 13. rder of basicity towards BF 3 for the following compound is: Ph () (a) A < B < < D (b) D < < B < A (c) D < < A < B (d) A < B < D < 14. Arrange the acidic character of marked proton in the following compound in increasing order: () (a) D < < B < A (b) A < < B < D (c) A < < D < B (d) B < D < < A South Delhi : 28-A/11, Jia Sarai, ear-iit auz Khas, ew Delhi-16, Ph : , orth Delhi : 33-35, Mall Road, G.T.B. agar (pp. tro Gate o. 3), Delhi-09, Ph: ,

4 15. The correct order of stability of the following carbocation: () (a) A > B > > D (b) D > > B > A (c) A > B > D > (d) D > B > > A 16. Arrange the following in decreasing order of their stability () (E) (F) (a) F > D > E > A > B > (c) B > > A > D > E > F 17. The correct order of pk a value (b) > B > A > E > D > F (d) > A > B > D > E > F 3 3 () Br (a) B < > E > A > D (b) > A > D > E > B (c) A > > D > B > E (d) B > E > D > A > 18. The correct order of basicity of the following heterocyclic compound is (E) () (a) A < B < < D (b) D < < A < B (c) D < < B < A (d) B < A < < D South Delhi : 28-A/11, Jia Sarai, ear-iit auz Khas, ew Delhi-16, Ph : , orth Delhi : 33-35, Mall Road, G.T.B. agar (pp. tro Gate o. 3), Delhi-09, Ph: ,

5 19. Which of the following diones are not readily soluble in aqueous a and does not give red colour with Fel 3 solution 5 (a) (b) (c) (d) 20. The correct order of reactivity towards hydrolysis of the following functional gropu is R l R (a) A > B > > D > E (c) D > A > B > E > R () R Ar R R 2 (b) A > > B > E > D (d) A> > B > D > E (E) R South Delhi : 28-A/11, Jia Sarai, ear-iit auz Khas, ew Delhi-16, Ph : , orth Delhi : 33-35, Mall Road, G.T.B. agar (pp. tro Gate o. 3), Delhi-09, Ph: ,

6 6 SIR-UG-ET/JRF GATE EMISTRY TEST : GEERAL RGAI EMISTRY (G) Date : [ASWERS] PART-A 1. (d) 2. (c) 3. (a) 4. (a) 5. (b) 6. (b) 7. (d) 8. (a) 9. (c) 10. (a) PART-B 11. (a) 12. (a) 13. (b) 14. (b) 15. (a) 16. (b) 17. (d) 18. (c) 19. (d) 20. (d) South Delhi : 28-A/11, Jia Sarai, ear-iit auz Khas, ew Delhi-16, Ph : , orth Delhi : 33-35, Mall Road, G.T.B. agar (pp. tro Gate o. 3), Delhi-09, Ph: ,

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