The most important ore of Aluminium is

A. Calamine

B. Calcite

C. Galena

D. Bauxite

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  1. Bromine is
  2. The colour of Emerald is
  3. The hardest substance available on earth is
  4. The accumulation of stress along the boundaries of lithospheric plates results in which of the following?
  5. In a certain electronic circuit the output is positive if input 1 is positive and input 2 is zero. If…
  6. The metallic constituents of hard water are
  7. The metal that is present in Photo Films is
  8. The speed of light with the rise in the temperature of the medium
  9. Cell membrane is
  10. The solar eclipse occurs when
  11. Water has maximum density at
  12. Brass gets discoloured in air due to the presence of which gas in air
  13. In an atomic nucleus, neutrons and protons are held together by
  14. Glass is made from the mixture of
  15. Which of the following is the lightest metal ?
  16. Epoxy resins is used as
  17. The marine animal called dugong which is vulnerable to extinction is a/an
  18. According to Daltons atomic theory the smallest particle which can exist independently is
  19. The recent atomic weight scale is based on
  20. Liquefied Petroleum gas (LPG) consists of mainly
  21. Pollination by birds is called
  22. Old-written material, which cannot be read easily can be read by
  23. When a gas is turned into a liquid, the process is called
  24. The formula of Plaster of Paris is
  25. The fastest acting enzyme in the biological kingdom is
  26. Carbon tetrachloride fire extinguisher should not be used in closed room because it produces poisonous…
  27. What is the unit for measuring the pitch or frequency of sound ?
  28. Permanent hardness of water can be removed by adding
  29. Which of the following items will be attracted to the north pole of a permanent magnet by a magnet force?
  30. The location and energy of an electron in an atom can be specified by