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The location and energy of an electron in an atom can be specified by

A. Atomic number

B. Atomic mass

C. Quantum numbers

D. None of these

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  1. The intencity of Earthquakes is measured on
  2. Carbon tetrachloride fire extinguisher should not be used in closed room because it produces poisonous…
  3. Quartz crystals normally used in quartz clocks etc. is chemically
  4. The colour of Emerald is
  5. Bromine is
  6. The solar eclipse occurs when
  7. The metal that is present in Photo Films is
  8. Which of the following characters is not shown by hydrogen
  9. The formula of Plaster of Paris is
  10. Old-written material, which cannot be read easily can be read by
  11. According to Daltons atomic theory the smallest particle which can exist independently is
  12. Which of the following elements is non-radioactive?
  13. In a certain electronic circuit the output is positive if input 1 is positive and input 2 is zero. If…
  14. When a gas is turned into a liquid, the process is called
  15. The removal of top soil by water or wind is called
  16. The element present in the largest amount in rocks and minerals is
  17. The accumulation of stress along the boundaries of lithospheric plates results in which of the following?
  18. Nitrification means
  19. The location and energy of an electron in an atom can be specified by
  20. The property of a substance to absorb moisture from the air on exposure is called
  21. Which of the following is the lightest metal ?
  22. The oxide of Nitrogen used in medicine as anaesthetic is
  23. Epoxy resins is used as
  24. Polythene is industrially prepared by the polymerisation of
  25. Which of the following elements is obtained from sea weeds ?
  26. The recent atomic weight scale is based on
  27. In an atomic nucleus, neutrons and protons are held together by
  28. Cell membrane is
  29. Which of the following parts of the sun is easily visible only during a total solar eclipse?
  30. Permanent hardness of water, due to sulphates of the metal, can be destroyed by the use of