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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  2. Polythene is industrially prepared by the polymerisation of
  3. Cell membrane is
  4. The hardest substance available on earth is
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  6. The most important ore of Aluminium is
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  16. The element present in the largest amount in rocks and minerals is
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  18. Old-written material, which cannot be read easily can be read by
  19. Which of the following parts of the sun is easily visible only during a total solar eclipse?
  20. The metal used in storage batteries
  21. The chemial name of Uria is
  22. The major ingredient of leather is
  23. Rust is
  24. The smallest functional and structural unit of kidney is called as
  25. The Panda belongs to the same family as that of
  26. The solar eclipse occurs when
  27. The oxide of Nitrogen used in medicine as anaesthetic is
  28. The accumulation of stress along the boundaries of lithospheric plates results in which of the following?
  29. Which of the following is most likely to cause a rise in the average temperature of earth's atmosphere…
  30. In an atomic nucleus, neutrons and protons are held together by