Setting of plaster of Paris is accompanied with

A. Hydration

B. Dehydration

C. Hydrolysis

D. Loss of CO2


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  1. Which of the following is an endothermic reaction?
  2. Hydrogenation of oil does not
  3. Calcareous & argillaceous materials are used in the manufacture of
  4. Dacron is a/an
  5. Unsaturated oils compared to saturated oils have
  6. Fumigant insecticides
  7. Soaps remove dirt by
  8. Cooking liquor in case of sulphite process is
  9. Styrene butadiene rubber (SBR) is
  10. Drinking (potable) water treatment does not involve
  11. Cement mainly contains
  12. __________ is a thermosetting plastic.
  13. The yield of tar from high temperature carbonisation of dry coal is about __________ percent.
  14. One of the steps during refining of cane sugar consists of addition of hydrated lime to the sugar syrup…
  15. Lime and soda ash are added to water to remove
  16. Catalyst used during the manufacture of 'Vanaspati Ghee' is
  17. Purity of oxygen used for blowing in steel making L.D. converter is 99.5%. The boiling point of oxygen…
  18. Enamels
  19. Production of alcohol by fermentation of molasses is a/an __________ process.
  20. Washing soda is chemically represented by
  21. The purpose of adding Na2CO3 to water of low alkalinity is to
  22. Which of the following paper does not require a filler during manufacture?
  23. __________ iron is the purest form of iron.
  24. Which oil is preferred for paint manufacture?
  25. Widely used method for the conditioning of boiler feed water is the
  26. Bleaching powder (chemically known as calcium chloro hypochlorite) is commercially produced by the action…
  27. The main use of HCl is in the
  28. Salt is the basic raw material for the manufacture of
  29. __________ is a thermosetting plastic.
  30. Platinum is a versatile catalyst for many processes in chemical industries. It is highly prone to be…