Railways-General-Science-Answer-Key-for-RRB-ALP-Group-D-2018.pdf - Railways General Science Answer Key for RRB ALP Group D Qs Ans Qs Ans Qs Ans Qs Ans

Railways-General-Science-Answer-Key-for-RRB-ALP-Group-D-2018.pdf

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1 | P a g e Railways General Science Answer Key for RRB ALP & Group D Qs. Ans. Qs. Ans. Qs. Ans. Qs. Ans. Qs. Ans. 1. A 2. C 3. B 4. A 5. B 6. A 7. C 8. D 9. B 10. A 11. A 12. A 13. B 14. C 15. B 16. A 17. A 18. A 19. B 20. A 21. A 22. D 23. B 24. C 25. A 26. B 27. A 28. A 29. A 30. D 31. A 32. A 33. D 34. A 35. B 36. A 37. A 38. A 39. B 40. D 41. A 42. B 43. A 44. A 45. A 46. D 47. B 48. C 49. B 50. A 51. C 52. A 53. D 54. A 55. C 56. A 57. B 58. C 59. D 60. C 61. A 62. B 63. B 64. A 65. B 66. B 67. A 68. A 69. D 70. A 71. A 72. D 73. D 74. A 75. A 76. A 77. B 78. A 79. C 80. A 81. D 82. D 83. A 84. C 85. A 86. B 87. B 88. A 89. A 90. C 91. D 92. A 93. B 94. D 95. A 96. A 97. D 98. C 99. A 100. C
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2 | P a g e Solutions: Q.33 Ans: D A solution contains 50 g of common salt in 340 g of water. Calculate the mass of the solution. Mass of solute (salt) = 50 g Mass of solvent (water) = 340 g Mass of solution = Mass of solute + Mass of solvent = 50 g + 340 g = 390 g Q.39 Ans: B The relative molecular mass of water (H 2 O) is Atomic mass of hydrogen = 1u, Atomic mass of oxygen = 16 u So, the molecular mass of water, which contains two atoms of hydrogen and one atom of oxygen is = 2 x 1+ 1 x 16 = 18 u Q.40 Ans: D What is the formula unit mass of CaCl2?
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  • Atom, Mass, Velocity, Molecule, Prime number, Atomic mass unit

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