__________ is the major constituent of the Portland cement.

A. Calcium carbonate

B. Calcium oxide

C. Tricalcium silicate

D. Calcium sulphate

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  1. Hydrogenation of vegetable oils is a/an __________ reaction.
  2. Styrene-butadiene-rubber (SBR) as compared to natural rubber has
  3. Fermentation is adversely affected by the
  4. The most stable allotropic form of phosphorous is the __________ phosphorous.
  5. Margarine is a/an
  6. Pick out the wrong statement.
  7. Hydrogenation of oil does not
  8. Maleic anhydride is produced by catalytic oxidation of
  9. High purity nitrogen is used in
  10. Catalytic oxidation-dehydrogenation of methyl alcohol produces
  11. Rosin soap is added during paper manufacture to
  12. The most popular and common detergent i.e., alkyl benzene sulfonate (ABS) is a/an __________ detergent.
  13. Nylon-6 is a
  14. Which of the following is the main constituent of the mother liquor produced in salt industry?
  15. Boiling of water containing temporary hardness produces
  16. Varnish does not contain
  17. What products do we get on electrolysis of saturated brine using steel cathode and graphite anode in…
  18. __________ are added in lacquers to remove film brittleness and to improve adhereness.
  19. Lindane is
  20. Oleum produces fumes of
  21. Phosphate rock is a raw material for the manufacture of
  22. In an integrated steel plant, NH3 present in coke oven gas is normally recovered as
  23. Ethyl alcohol cannot be produced
  24. Sulphuric acid saturated with SO3 is called
  25. Titanium dioxide is a/an __________ colour pigment.
  26. The only commercial Fischer-Tropsch plant for producing liquid hydrocarbon fuel from coal is located…
  27. A mineral is termed as 'ore', if
  28. In sulphate pulp manufacture, the pressure and temperature in the digestor is
  29. The basic difference between vegetable oils and fats is in their
  30. Starting material for the production of styrene butadiene rubber (SBR) is