UGC NET June 2023 Paper | UGC NET JRF Paper June 2023 | CSIR UGC NET JRF Paper

UGC NET June 2023 Paper | UGC NET JRF Paper June 2023 | CSIR UGC NET JRF Paper Chemical Sciences Paper I(PART ‘B’) 

41. Complexes of which of the following metals are used in the treatment of rheumatoid arthritis: 1. Gold 2. Ruthenium 3. Iron 4. Copper 

42. Non-heme iron-sulfur proteins are involved in: 1. Electron transfer. 2. Proton transfer. 3. Both electron and proton transfer 4. Oxygen transfer. 

43. Active catalytic species for hydroformylation is 1. RuCl2(PPh3)3 2. HCo(CO)3 3. RhCl(PPh3)3 4. K2PtCl6 

44. The unit of molar absorptivity is: 1. L mol–1 cm–1 2. L–1 mol cm–1 3. L mol cm–1 4. L mol cm 

45. Gelatin is added during polarographic measurements to: 1. reduce streaming motion of falling mercury drop 2. increase Id 3. increase E1/2 4. eliminate residual current 

46. The element that shows both +3 and +4 oxidation states is: 1. Cerium 2. Promethium 3. Gadolinium 4. Holmium 

47. The number of 3c, 2e BHB bonds present in B4H10 is 1. 2 2. 3 3. 4 4. 0 

48. In BrF3 as a solvent SnF4 and KF behave as 1. acid and base, respectively 2. base and acid, respectively 3. acids 4. bases 

49. The effective nuclear charge (Z*) for the 1s electron of 8O according to Slater’s rules is nearly 1. 4.55 2. 3.45 3. 7.65 4. 5.45 Click Here To Download Full Paper