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The property of a substance to absorb moisture from the air on exposure is called

A. Desiccation

B. Efflorescence

C. Deliquescene

D. Osmosis

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  1. The major ingredient of leather is
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  3. Quartz crystals normally used in quartz clocks etc. is chemically
  4. Which of the following is the lightest metal ?
  5. Which of the following elements is non-radioactive?
  6. According to Daltons atomic theory the smallest particle which can exist independently is
  7. The formula of Plaster of Paris is
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  16. Which of the following elements is a metal
  17. Apparatus invented by Archimedes is :
  18. Polythene is industrially prepared by the polymerisation of
  19. The metal used in storage batteries
  20. Cell membrane is
  21. Glass is made from the mixture of
  22. The most important ore of Aluminium is
  23. The speed of light with the rise in the temperature of the medium
  24. Which of the following items will be attracted to the north pole of a permanent magnet by a magnet force?
  25. Earth's seasons are caused by which of the following?
  26. Which of the following characters is not shown by hydrogen
  27. The hardest substance available on earth is
  28. Which of the following is commonly called a polyamide ?
  29. Which of the following is most likely to cause a rise in the average temperature of earth's atmosphere…
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