Calcination of gypsum produces

A. Plaster of Paris

B. Salt cake

C. Nitre cake

D. Lime

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  1. Which of the following is a bleaching agent added in the detergents to facilitate removal of stains…
  2. Paper grade bamboo contains about __________ percent cellulose.
  3. Frasch process is for
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  5. Polymerisation product of C2F4 (carbon tetrafluoride) is called P.T.F.E (poly chloro tetra fluoro ethylene).…
  6. Starting material for the production of butadiene in India is
  7. __________ is used as a flux in the smelting of copper ore like chalcopyrite.
  8. Fusel oil is a/an
  9. Glauber's salt is chemically represented by
  10. Nylon-6 is a
  11. Starting material for the production of styrene butadiene rubber (SBR) is
  12. Fat dispersed in water is exemplified by
  13. Molecular weight of plastics ranges from
  14. In the manufacture of H2SO4, vanadium catalyst as compared to platinum catalyst
  15. Phthalic anhydride is made by the
  16. Hydrazine is used in water treatment for the removal of
  17. Zeolite is used in the
  18. Average sulphur content in Indian pyrites is about __________ percent.
  19. The catalyst used in the manufacture of DDT is
  20. Nitrile rubber is produced by the polymerisation of
  21. Kaolin is a/an
  22. Detergent is produced by the sulphonation of dodecyl benzene, which is an __________ reaction.
  23. A mineral is termed as 'ore', if
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  25. Penicillin, an antibiotic drug was discovered by
  26. Pig iron is produced by blast furnaces in India using mostly the iron ore named
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  28. Naphthols are derivates of
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