Formula of Binary Compounds - Shailendra Kumar Chemistry

PHYSICAL CHEMISTRYIII).... ....Cl......O – C – Cl......a) II b) Ic) III d) IVe) V18. Which of the following is an acceptable Lewis structure for H 2CO?I) H – C – Ọ II) H – C = III).OH..1. Opp. Khuda Baksh Library, Ashok Rajpath, Patna - 42. House no. 5A/65, Opp. Mahual Kothi, Alpana Market, PatnaIV).. ....Cl..By: Shailendra KumarIV) H – C = Ọ.V) H – C – Ọ.HHa) II b) Ic) III d) IVe) V19. Which of the following species has at least on double bond?a) CO 2b) N 2c) CN – d) C 2H 2e) CH 420. Which of the following species has a triple bond?a)2–C 2b) H 2COc) C 2H 4d) CO 2e) NH 321. Diazine, N 2H 2has one hydrogen atom bonded to each of the nitrogen atoms which in turn arebonded to each other. What type of bond exists between the nitrogen atoms?a) doubleb) singlec) triple22. Consider the following species. Which contain an odd number of electrons?BrO 3–HO 2N 2O SO 32–SO 3a) 2 and 5 b) only 2c) 3 and 4 d) only 1e) 1, 3 and 4....O = C – Cl........H.. .............. ....Cl......O – C – Cl..V)....H – C= Ọ.HPage No.: 4

PHYSICAL CHEMISTRY52. Which of the following has bond angles of approximately 90°?1) ClF 32) BF 33)–ClO 34) SF 45) GeCl 4a) 1 and 4 b) 2 and 3c) 3 only d) 5 onlye) 4 only53. Which of the following has bond angles of approximately 109.5°?1) ClF 32) BF 33)–ClO 44) SF 45) GeCl 4a) 3 and 5 b) 1 and 4c) 2 and 3 d) 5 onlye) 4 only54. Which of the following has bond angles of approximately 90°?1) NF 32) BF 33)–ClO 44) SF 45) PCl 5a) 4 and 5 b) 1 and 4c) 2 and 3 d) 1 and 3e) 3 and 555. Which of the following is a nonpolar molecule?a) H 2O b) BCl 3c) CH 2Cl 2d) PCl 3e) NO56. Which of the following is a nonpolar molecule?a) BrF 5b) PCl 5c) ClF 3d) CHCl 3e) BrF57. Consider the following molecules and select those that are polar.1) PCl 32) PCl 5By: Shailendra Kumar3) ClF 34) ClF 5a) 2 and 4 b) 1, 3 and 4c) 1 and 3 d) 1, 2, 3 and 4e) 2 and 31. Opp. Khuda Baksh Library, Ashok Rajpath, Patna - 42. House no. 5A/65, Opp. Mahual Kothi, Alpana Market, PatnaPage No.: 9

PHYSICAL CHEMISTRYBy: Shailendra KumarA N S W E R S1. d 16. d 31. d 46. c2. d 17. d 32. c 47. c3. d 18. d 33. c 48. c4. e 19. a 34. d 49. e5. e 20. a 35. d 50. e6. e 21. a 36. d 51. e7. c 22. d 37. c 52. a8. b 23. d 38. c 53. a9. c 24. d 39. c 54. a10. c 25. a 40. c 55. b11. c 26. a 41. c 56. b12. c 27. a 42. c 57. b13. a 28. a 43. c14. a 29. a 44. c15. a 30. a 45. c1. Opp. Khuda Baksh Library, Ashok Rajpath, Patna - 42. House no. 5A/65, Opp. Mahual Kothi, Alpana Market, PatnaPage No.: 10