Carborundum consists mainly of

A. Bauxite

B. Silicon carbide

C. Boron carbide

D. Calcium carbide

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  1. Temperature during hydrogenation of oil should not be more than 200°C, otherwise it will result…
  2. Haemoglobin is a/an
  3. Titanium dioxide is a/an __________ colour pigment.
  4. Celluloid is chemically
  5. Oils are partially hydrogenated (not fully) to manufacture Vanaspati, because fully saturated solidified…
  6. Caprolactam (a raw material for nylon-6 manufacture) is produced from
  7. Detergent is produced by the sulphonation of dodecyl benzene, which is an __________ reaction.
  8. 99.5% purity oxygen is used in
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  10. All enzymes are made of
  11. Polymethyl methacrylate (PMMA) is known as
  12. Purity of oxygen used for blowing in steel making L.D. converter is 99.5%. The boiling point of oxygen…
  13. Chemical formula of 'salt cake' is
  14. Systemic insecticides
  15. Highly porous refractory bricks are
  16. __________ acid is the main constituent of cotton seed oil.
  17. 'Hollander beater' machine used in the paper manufacturing plant does not accomplish the task of
  18. Electric bulbs are made of __________ glass.
  19. __________ is an ore of lead.
  20. The catalyst used in the manufacture of DDT is
  21. SO2 is bubbled through hot sugar cane juice to
  22. The most widely used coagulant for removing suspended impurities from water is
  23. Solvay process as compared to dual process(i.e. modified Solvay process).
  24. Pick out the endothermic reaction out of the following.
  25. Sucrose content in cane sugar may be around __________ percent.
  26. Nitric acid is not used in the manufacture of
  27. Nylon-6 as compared to Nylon-66 is having higher
  28. Catalytic oxidation of naphthalene produces
  29. Nylon-66 is so named because the
  30. Fats as compared to oils have