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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 smallest functional and structural unit of kidney is called as
  2. Liquefied Petroleum gas (LPG) consists of mainly
  3. The oxide of Nitrogen used in medicine as anaesthetic is
  4. Permanent hardness of water, due to sulphates of the metal, can be destroyed by the use of
  5. Water has maximum density at
  6. Which of the following is in liquid form at room temperature ?
  7. The colour of Emerald is
  8. Quartz crystals normally used in quartz clocks etc. is chemically
  9. The intencity of Earthquakes is measured on
  10. What is the unit for measuring the pitch or frequency of sound ?
  11. One fathom is equal to
  12. Which of the following parts of the sun is easily visible only during a total solar eclipse?
  13. Which of the following is the lightest metal ?
  14. Carbon tetrachloride fire extinguisher should not be used in closed room because it produces poisonous…
  15. The fastest acting enzyme in the biological kingdom is
  16. In a certain electronic circuit the output is positive if input 1 is positive and input 2 is zero. If…
  17. Pollination by birds is called
  18. Which of the following items will be attracted to the north pole of a permanent magnet by a magnet force?
  19. The speed of light with the rise in the temperature of the medium
  20. The marine animal called dugong which is vulnerable to extinction is a/an
  21. The major ingredient of leather is
  22. Epoxy resins is used as
  23. Apparatus invented by Archimedes is :
  24. Brass gets discoloured in air due to the presence of which gas in air
  25. The metal used in storage batteries
  26. Which of the following characters is not shown by hydrogen
  27. The Panda belongs to the same family as that of
  28. Which of the following elements is a metal
  29. The most important ore of Aluminium is
  30. Polythene is industrially prepared by the polymerisation of