UGC POINT ACADEMY LEADING INSTITUE FOR CSIR-JRF/NET, GATE & JAM

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1 UGC POINT ACADEMY LEADING INSTITUE FOR CSIR-JRF/NET, GATE & JAM Date: 21/Nov/16, M.M: 160 Timing: 2:00 H BOOKLET CODE SUBJECT CODE A 01 CHEMICAL SCIENCE INORGANIC CHEMISTRY TEST SERIES # 1 Student Name: Father s Name: Exam Centre Name: Mobile No.: Instructions 1. This test paper has a total of 60 questions. The entire question paper is divided in two sections, A and B. All sections are compulsory. Question in each section are different type. 2. Question 1 to 40 carrying 2 marks & 41 to 60 carrying 4 marks each. 3. Read the Questions carefully and mark your appropriate response to the OMR sheet. 4. There is Negative marking of 1/4 for each wrong answer. 5. Mark the response by Black or Blue Ball Pen only. 6. Any other belongings like Book/ Notes / Electronic device etc are not permitted in the examination hall. 7. Submit your answer sheet (OMR Sheet) to the invigilator before leaving the examination hall.

2 PART-A 1. In Nitrogen fixation N 2 changes NH 3, during the changes intermediates formed are (1) diazene and hydrazine (2) nitrate and hydrazine (3) diazene and nitrogenase (4) nitrite and nitrate 2. Hemerythrin and oxyhemerythrin respectively. (1) pairamagnetic, diamagnetic (2) and (3) both (a) and (b) are correct (4) both are ESR active 3. Point group of Plastocyanin (Blue Copper Proteins): 4. Under study Resonance Raman spectroscopy and FT-IR, the correct set of I.R. spectrum frequencies of dioxygen binding proteins. (1) Hemoglobin cm 1, Myoglobin cm 1 Hemerythrin cm 1, Hemocyanin -850 cm 1 (1) Hemoglobin cm 1, Myoglobin -700 cm 1 Hemerythrin cm 1, Hemocyanin cm 1 (2) Hemoglobin cm 1, Myoglobin cm 1 Hemerythrin cm 1, Hemocyanin -850 cm 1 (3) Hemoglobin cm 1, Myoglobin -700 cm 1 Hemerythrin cm 1, Hemocyanin -850 cm 1 5. Metal carbonyls and having correct set of M-M bonds and I.R. frequencies respectively. (1) 5 and 2000 in both (2) 6 and 2100 in both (3) 5, 6 and 2000 and 1800, 1623 (4) 5, 6 and 2100, 2000 and 1830, The number of terminal CO groups in and respectively. (1) 12 and 12 (2) 10 and 9 (3) 12 and 9 (4) 10 and Correct order of M-C bond length of complexes. (A) (B) (C)

3 8. The correct set of pseudohalide is (1) (2) and (3) and (4) and 9. The Amomonolysis of sulfur monochloride, either in an inert solvent OR ammonium chloride (heated) the product will be 10. The general formula and silicates are respectively (1) chain and orthosilicates (2) single chain and double chain (3) single chain and sheet (4) chain and disilicate 11. In and number of lone pairs are (1) 1 (2) 2 (3) 2, 2 (4) 3, The ESR active pairs of metal clusters are and 13. In transition metal phosphine complexes the back bonding involves donation of electrons from 14. The Mulliken symbols for the spectroscopic states arising from the free-ion term G are 15. In charge transfer spectrum of manganess (VII) complexes in correct transition is 16. The ground state 8 S 3/2 will be none

4 17. The plot of versus for ferromagnetic complex follows Curie equation is 18. The successive addition of to is formed, six steps are involved, correct order of rate of steps 19. The formation constant for the complexation of and with crown-5 in gas phase study, correct order is 20. The correct order of -acceptor abilities of ligands decreasing order 21. The potential energy (P.E) versus reaction coordinate for electron transfer reactions with rate constants and are given below. The (Gibbs) energy decreasing order will be (1) X > Y > Z (2) X > Z > Y (3) Z > Y > X (4) Z > X > Y 22. Copper acetate cluster exhibit (1) Dimer, Antiferromagnetic (2) Monomer, Paramagnetic (3) Monomer, Ferrimagnetic (4) Dimer, Diamagnetic

5 23. Observe the following electronic transitions (A) (B) (C) (D) The allowed transitions are (1) (A) and (C) only (2) (A) and (D) only (3) (C) and (D) only (4) (B), (C) and (D) only 24. The LMCT energy order is correct 25. The nephelauxetic parameter for complexes depends the nature of ligands correct order of (decreasing order) will be 26. Term symbol for configuration (1) 3 P, 2 P (2) 1 P, 2 P (3) 3 P, 1 P (4) 2 P, 4 P 27. Number of microstates in 1 S and 1 D respectively (1) 9, 21 (2) 5, 5 (3) 1, 9 (4) 1, According to ligand field theory, symmetry label having degeneracy (1) 1 (2) 3 (3) 2 (4) The correct order of ionic radii of ions 30. The correct order of Ionisation energy 31. According to Slater rule the effective nuclear charge of 7 N atom will be (1) 7.0 (2) 3.1 (3) 3.9 (4) The electronic configuration for Uranium 33. According to MOT, the last electron enter in CO and NO molecules respectively

6 34. The Spectrum of a low spin complex [Co(ethylenediamine) 3 ] 3+ show transitions (1) 1 T 1 E (2) 1 A 1 T and 1 A 1 T 2 g g 1g 1g (3) 1 A 1 T (4) 5 T 5 E 1g 1g 35. Among the following, the correct acid strength is represented by (1) Na( H O) 6 Sc( H2O) 6 Mn( H2O) 6 Ni( H2O) 6 (2) Sc( H O) 6 Na( H2O) 6 Mn( H2O) 6 Ni( H2O) 6 (3) Ni( H O) 6 Mn( H2O) 6 Sc( H2O) 6 Na( H2O) 6 (4) Ni( H O) 2 Mn( H O) 2 Na( H O) Sc( H O) g g 1g 2g 36. Correct order of chemical shift of hydrogen in and respectively (1) -7.6ppm, -11.1ppm, -8.7ppm (2) -8.7ppm, -11.1ppm, -7.6ppm (3) -11.1ppm, -7.6ppm, -8.7ppm (4) -11.1ppm, -8.7ppm, -7.6ppm 37. Number of P 31 -NMR signals in and (1) one and two (2) only one (3) only two (4) two and one 38. If and only internal electric field gradient in present no external magnetic field is applied the number of lines in mossbauer spectrum (1) 12 lines (2) 8 lines (3) 5 lines (4) 6 lines 39. The number of lines observed in mossbauer spectrum and under quadrupole splitting (1) only one (2) one and two (3) both having two (4) one and three 40. Number of ESR lines in Azulene and (1) 108, 49 (2) 54, 196 (3) 54, 49 (4) 108,196 PART-B 41. Identify correct statements for hemocyanine A. The copper is in the +1 oxidation state in deoxy form and +2 in oxy form B. Oxygen molecule bonded to both Cu atoms with bonds. (dihepto manner) C. In deoxy (Cu.Cu = 460 nm) and Oxy (Cu Cu = 360 pm) D. In oxy hemocyanine O 2 molecule, wave number lowering and bond order changes 2 to 1 The correct answer is. (1) A and B (2) A and C (3) B, C and D (4) A, B, C and D

7 42. Match the Medicine given column-a with its disease in column-b Column-A (A) Satraplatin (B) Myochrisin (C) Penicillamine (D) Lithowile Column-B (I) Anti-arthritis drugs (II) Wilson s disease (III) Depression (IV) DNA replication (treatement) (1) A-IV, B-I, C-III, D-II (2) A-IV, B-I, C-II, D-III (3) A-III, B-I, C-II, D-IV (4) A-I, B-IV, C-II, D-III 43. Identify correct statement for Coenzyme B 12 A. Co exist three oxidation states I, II and III B. Co in all oxidation states are low spin C. Co(II) is 17 electron, five coordinated its unpaired electron in dz 2 -orbital D. Co-I, 18 electron six coordinated, Co III-16 electron, four coordinated (1) A and D (2) A and C (3) B and D (4) A, B and C 44. Match the Column-A with Column-B: Column-A Column-B I. Cytochrome P 450 A. Biomineralization II. Ferritin B. Ionophores III. Valinomycins C. Oxidation of alkane IV. Myoglobin D. Oxygen storage Correct answer is. (1) I-C, II-A, III-B, IV-D (2) I-A, II-C, III-B, IV-D (3) I-C, II-A, III-D, IV-B (4) I-D, II-A, III-B, IV-C 45. On reducing and with anexcess sodium, two carbonylate ions are formed. The ions are isoelectronic with 46. Amongst the following which is not isolobal pairs: (1) and (2) and (3) and (4) and 47., [P] have two I.R. frequencies 1672 cm 1 and 1505 cm 1 due to (1) only (2) only (3) and (4) Two and two

8 48. Correct statements about [X] and [Y] (1) [X] is pairamagnetic (2) [Y] is diamagnetic (3) both are ESR active (4) both are stable compounds due to 18 electrons rule 49. Identify the correct statement about carboranes (A) is isoelectronic with (B) having three isomers, they formed with changing in high temperature (C) All three isomers are closo in structure (D) All boranes and carboranes follow wade s rule Correct statements are (1) A, B, C and D (2) A, B, C only (3) B, C, D only (4) B, C only 50. Above reaction [X] and [Y] products respectively 51. The reaction of with gives product A which upon reaction with gives B. Product B upon reduction with gives compound C, which is (1) and diborane (2) 52. Hexanitrocuprate (II) ion exhibit (1) Static Jahn Teller distroption (2) dynamic Jahn Teller effects (3) Tetragonally elongation and compression both (4) All CN 14 6 CN The products and are (1) Labile only (2) Inert only (3) Inert and Labile (4) Labile and Inert

9 54. Observe the following electronic transition of a diatomic molecule (A) 1 1 (B) 1 1 u g g u (C) 3 3 (D) 3 3 g u The allowed transitions are (1) (A) and (B) only (2) (A), (B) and (C) (3) (B) and (C) only (4) (A) and (D) only 55. Identify the correct statements (A) d orbitals are gerade (B) f orbitals are Ungerade (C) P and d orbitals no centre of symmetry (D) S and d orbitals having centre of symmetry Correct statements are (1) (A) and (B) only (2) (B) and (C) only (3) (A), (B) and (C) only (4) (A), (B), (C) and (D) 56. Identify the correct statements about solvents (A) acts strong acid in Amonia (B) Ytterbium form ammoniate with Amonia (C) Perchloric acid behave weak acid with (D) Magic acid is a solution of antimony pentafurite in fluorosulfonic acid Correct statements (1) (B) and (D) only (2) (A) and (B) only (3) (A),(B) and (C) only (4) (A), (B), (C) and (D) 57. Match Column-A with Column-B Column-A Column-B (A) Aqua acid (i) (B) Hydroso acid (ii) (C) Oxo acid (iii) Correct answer is (1) A-ii, B-i, C-iii (2) A-ii, B-iii, C-i (3) A-iii, B-ii, C-i (4) A-iii, B-i, C-ii 58. o at 70 C, 1 H-NMR spectrum of this compound shows (1) one signal (2) two signals with 5:1 ratio (3) two signals 1:5 (4) three signals in intensity ratio 1:2:2 59. Identify the fluxional molecules (i) (ii) (iii) (iv) Correct statements is (1) (i) and (ii) only (2) (i), (ii), (iii) and (iv) (3) (ii), (iii) and (iv) only (4) (iii) and (iv) only 60. At what magnetic field would the Methyl radical come in to resonance in a spectrometer at GHz (1) T (2) T (3) T (4) T g u

10 UGC POINT ACADEMY LEADING INSTITUE FOR CSIR-JRF/NET, GATE & JAM Date: 21/Nov/16, M.M: 160 Timing: 2:00 H BOOKLET CODE SUBJECT CODE A 01 CHEMICAL SCIENCE INORGANIC CHEMISTRY TEST SERIES # 1 ANSWER KEY 1.(1) 2.(3) 3.(1) 4.(1) 5.(4) 6.(2) 7.(3) 8.(3) 9.(2) 10.(3) 11.(4) 12.(2) 13.(4) 14.(3) 15.(1) 16.(2) 17.(4) 18.(1) 19.(3) 20.(2) 21.(1) 22.(1) 23.(3) 24.(4) 25.(1) 26.(3) 27.(4) 28.(2) 29.(1) 30.(2) 31.(3) 32.(1) 33.(3) 34.(2) 35.(1) 36.(3) 37.(1) 38.(3) 39.(1) 40.(4) 41.(4) 42.(2) 43.(4) 44.(1) 45.(1) 46.(2) 47.(4) 48.(4) 49.(1) 50.(4) 51.(1) 52.(4) 53.(4) 54.(2) 55.(4) 56.(4) 57.(2) 58.(4) 59.(2) 60.(3)