Basic-Chemistry Related Question Answers

26. Molecular ions are generated by passing






27. The amount of oxygen in combustion analysis is determined by method of






28. The number of radioactive isotopes is






29. The number of subatomic particles in atoms is more than






30. A molecule is a smallest particle which can exist






31. The mass of one molecule of sulphuric acid is






32. The relationships which can be studied by stoichiometry are






33. The number of isotopes which oxygen atom has are






34. The ions having positive charges are






35. The mass of one mole of water molecule is






36. The example of atom having single isotope is






37. The most abundant molecular ions are






38. Moleis defined as mass of an element divided by






39. Elements with even number of isotopes are






40. The atomic mass of phosphorus is






41. Molecular formula is determined by multiplying n with






42. The molecule of methane contains four






43. Atomic mass is mass of carbon taken as






44. The products which are obtained in a chemical reaction is






45. The formula showing simplest whole number ratio is






46. Isotopes present in nature are






47. The 1 atomic mass unit is equal to






48. The ordinary microscope can measure up to






49. The word atom was derived from






50. In accelerating chamber of mass spectrometer potential difference is






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