Quick lime has the formula

A. CaO

B. Ca(OH)2


D. Na2CO3

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

You can do it
  1. Physico-chemical characteristics of water in water sources undergo changes due to
  2. Flint glass contains
  3. Galvanising is coating Iron with
  4. Rusting is a special case of corrosion applied to
  5. A valuable by-product in the manufacture of soap is
  6. Which one of the following gases is extremely soluble in water?
  7. Clark's method for removal of temporary hardness in water uses
  8. A mixture of naphthalene and sand is separated by
  9. Which of the following is not a characteristic of potable water?
  10. A drug that is usually administered for malaria is
  11. The discoverer of chloroform was
  12. Which of the following can absorb gases quickly?
  13. Gold dissolves in aqua regia due to the formation of
  14. Which among the following gases present in the air discolours brass nameplates?
  15. The earliest name given to nitrogen was
  16. A metal which is extracted by thermal reduction is
  17. A non-material kind of pollution is
  18. High temperature thermometers use
  19. Calamine is a ore of
  20. Rusting of iron cannot be prevented by
  21. Which of the following is not a supporter of combustion?
  22. The principle involved in dialysis, a treatment administered to patients with affected kidneys is
  23. The poisonous nature of carbon monoxide is due to
  24. Methylated spirit is a mixture of
  25. The scientist who synthesised the first organic compound (urea) in the laboratory was
  26. Which is the 'odd man' in the following?
  27. Which of the following carbon compounds is used as a fire extinguisher?
  28. Which or the following is not a constituent or gun powder?
  29. Refined petroleum is decolourised by
  30. Dust particles in the air of large industrial cities are removed by