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Which of the following is the lightest metal ?

A. Mercury

B. Lithium

C. Lead

D. Silver

Please do not use chat terms. Example: avoid using "grt" instead of "great".

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  2. Which of the following is in liquid form at room temperature ?
  3. The smallest functional and structural unit of kidney is called as
  4. Pollination by birds is called
  5. Which of the following is the lightest metal ?
  6. Permanent hardness of water can be removed by adding
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  10. The solar eclipse occurs when
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  13. The location and energy of an electron in an atom can be specified by
  14. The recent atomic weight scale is based on
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  16. Rust is
  17. Brass gets discoloured in air due to the presence of which gas in air
  18. What is the unit for measuring the pitch or frequency of sound ?
  19. The marine animal called dugong which is vulnerable to extinction is a/an
  20. The type of glass used in making prisms and lenses is
  21. Which of the following items will be attracted to the north pole of a permanent magnet by a magnet force?
  22. One fathom is equal to
  23. The metal that is present in Photo Films is
  24. The property of a substance to absorb moisture from the air on exposure is called
  25. The element present in the largest amount in rocks and minerals is
  26. The accumulation of stress along the boundaries of lithospheric plates results in which of the following?
  27. Which of the following elements is obtained from sea weeds ?
  28. Permanent hardness of water, due to sulphates of the metal, can be destroyed by the use of
  29. Apparatus invented by Archimedes is :
  30. The fastest acting enzyme in the biological kingdom is