- Baryllium Sulphate is less solu[1]ble in water due to (1) High inflammable energy (2) Low Energy of dissociation (3) Low inflammable energy (4) Lonic band (SSC Section Officer (Audit) Exam. year 1997)
- What is the name of that system, which uses radioactivity to decide the period of materials of-pre-his[1]toric period ? (1) Radium dating (2) Uranium dating (3) Carbon dating (4) Deuterium dating (SSC Section Officer (Audit) Exam. year 1997)
- Cement is made hard with (1) dehydration (2) hydration and dissociation of water (3) Dissociation of water (4) Polymerisation (SSC Section Officer (Audit) Exam. year 1997)
- What happens when a chemical bond is formed ? (1) energy is always absorbed (2) energy in always released (3) more energy is released than is absorbed (4) energy is neither released nor absorbed (SSC Section Officer (Audit) Exam. year 1997)
- Which among the following is a carbohydrate ? (1) Nylon (2) Cane-sugar (3) Turpentine (4) Hydrogen peroxide (SSC Section Officer (Audit) Exam. year 1997)
- In which of the following states maximum iron ore is found ? (1) FeCO3 (2) Fe2O3 (3) Fe3O4 (4) FeS2 (SSC Section Officer (Audit) Exam. year 1997)
- “All the four quantum numbers of two electrons in an atom are not the same.” It is the law of — (1) Hund’s(2) Exclusion Principle of Pauli (3) Uncertainty Principle of Hie[1]senberg (4) Avogadro’s Law (SSC Section Officer (Audit) Exam. year 1997)
- Commercial nitric acid is coloured because it contains dis[1]solved : (1) Oxygen (2) Nitrous oxide (3) Nitrogen dioxide (4) Coloured impurities (SSC Combined Graduate Level Prelim Exam. 27.02.2000 (First Sitting)
- Fertiliser having high nitrogen content is : (1) Urea (2) Ammonium sulphate (3) Ammonium nitrate (4) Calcium citrate (SSC Combined Graduate Level Prelim Exam. 27.02.2000 (First Sitting)
- Where does the oxygen that keeps us alive come from? (1) Carbon dioxide (2) Carbonates absorbed from soil (3) Oxides of minerals (4) Water (SSC Combined Graduate Level Prelim Exam. 27.02.2000
