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QUIZ START
#1. Which one of the following is pseudo solid:
#2. In liquids, intermolecular forces are:
#3. Which one is false for evaporation:
#4. Vapour pressure of water at 100°C is:
#5. Which one of the following does not show hydrogen bonding:
#6. Liquid crystal is discovered by:
#7. Hydrogen bonding involves in:
#8. Water has maximum density at:
#9. The conversion of vapours back into their liquid state is called:
#10. The boiling point increases down the zero group element due to:
#11. Vapour pressure is not affected by:
#12. Rising of a wetting liquid in a capillary tube is due to:
#13. Kerosene oil is used to kill mosquitoes because it has surface tension:
#14. Molar heat of vaporization of water is:
#15. A solid may be made up of:
#16. a ≠ b ≠ c, α = β = γ = 90° is representation of crystal system:
#17. Which solids are called true solids:
#18. Bucky balls is an allotropic form of:
#19. Which one of the following is isotropic:
#20. Instantaneous dipole and induce dipole force is also called:
#21. Polarizability generally —————— down the group:
#22. Evaporation of water is possible at:
#23. When external pressure is 23.7 torr, boiling point of water is:
#24. Existence of an element in more than one form is known as:
#25. Molecular crystals are generally:
#26. Which pair of molecules have Debye forces in them:
#27. Which one of the following liquid has low vapour pressure at 25°C:
#28. The shape of diamond crystal is:
#29. Which pair of compounds are isomorphic in nature:
#30. Crystalline solids do not have:
#31. The maximum number of electrons in a sub-shell with l = 3 is:
#32. Radius of the third shell of H-atom is:
#33. Colour of fluorescence produced by cathode rays depends upon:
#34. A fast moving neutron can eject from nitrogen:
#35. Pressure in gas discharge tube was kept:
#36. Angle of deflection of cathode rays in electric field was studied by:
#37. Positive rays give flash on:
#38. Free neutron change into proton with the emission of:
#39. The value of e/m ratio of electron is —————— C-kg⁻¹:
#40. Charge of electron was measured by:
#41. Angular momentum of an electron:
#42. Plank’s equation is:
#43. Millikan used —————— in his atomizer:
#44. When electron de-excite back into orbit 1, then series obtained is:
#45. The wave number of the light emitted by a certain source is 2 × 10⁶ m⁻¹. The wavelength of this light will be:
#46. Quantum number values for 2p orbitals are:
#47. When 6d orbital is complete, entering electron goes into:
#48. The e/m value for the positive rays is maximum for:
#49. The radius of first orbit of hydrogen atom is:
#50. Total number of d-electrons in an atom of atomic number 26 is:
#51. Which of the following orbital is not possible:
#52. Spin quantum number was given by:
#53. X-rays have same nature as:
#54. The value of Rhdberg constant is:
#55. Balmer series lie in:
#56. Which one of the following orbital will be first filled:
#57. An orbital can accommodate max. of:
#58. The orbital which is spherically symmetrical is:
#59. The SI unit of wave number is:
#60. X-rays were discovered by:
#61. Which of the following particles contain 20n, 19p and 18e:
#62. The electrons in K-shell of the atom will differ in:
#63. The no. of electrons in the M. shell of the element with atomic number 24 is:
#64. The value of Plank’s constant ‘h’ is:
#65. If “r” is the radius of first orbit, the radius of “nth” orbit of H-atom will be:
