Na2CO3.10H2O is called

A. Washing soda

B. Soda ash

C. Slaked lime

D. Quicklime

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

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  1. Concentration of sulphide ores is done usually by
  2. __________ Nature of hypo (sodium thiosulphate) makes it useful in photography.
  3. Aryl benzene sulphonate (ABS) is a
  4. Solvay process as compared to dual process(i.e. modified Solvay process).
  5. 10% oleum comprises of 10% free
  6. Concentration of NaOH solution produced by mercury electrolytic cell is about __________ percent.
  7. Haemoglobin is a/an
  8. Rotary kiln is not involved in the production of
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  12. Rosin soap is added during paper manufacture to
  13. Hollander beater used during paper pulp manufacture does not facilitate the __________ of fibre.
  14. Pick out the endothermic reaction out of the following.
  15. Enamels
  16. Process conditions in fermentator used for production of penicillin is
  17. The type of high refractive index glass used in optical instruments is __________ glass.
  18. Catalytic oxidation of toluene produces
  19. Transparent soaps (e.g. Pears) are
  20. Heating of __________ to 120°C, produces plaster of paris.
  21. Calcination of gypsum produces
  22. Permanent hardness of water is due to the presence of calcium & magnesium
  23. Which of the following is not present in bagasse fibre?
  24. Nylon-6 as compared to Nylon-66 is having higher
  25. Which of the following is a detergent?
  26. The enzyme which converts starch into the disaccharides maltose is
  27. More than 100 percent of __________ is present in oleum.
  28. Portland cement consists mainly of
  29. H2S is scrubbed from refinery gases by absorption using
  30. The major constituents of glass are