Platinum is a versatile catalyst for many processes in chemical industries. It is highly prone to be poisoned by the presence of

A. Carbon

B. Arsenic

C. Lead

D. Sulphur

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  1. Alcohol percentage in molasses may be around
  2. Sodium salt of higher molecular weight fatty acid is termed as the __________ soap.
  3. Oils and fats are converted to soap in a process called
  4. Concentration of NaOH solution produced by mercury electrolytic cell is about __________ percent.
  5. The gasification reaction represented by, C + H2O = CO + H2, is a/an __________ reaction.
  6. Lubricating greases are a mixture of
  7. Carborundum consists mainly of
  8. Dacron is a
  9. Pick out the wrong statement.
  10. DDT stands for
  11. Dichloro diphenyl __________ is the full form of DDT (an insecticide).
  12. Fish contains about __________ percent oil.
  13. __________ are added in lacquers to remove film brittleness and to improve adhereness.
  14. Metallic soap (e.g. aluminium or calcium salts of fatty acids) can be used
  15. Thermal pyrolysis of ethylene dichloride produces
  16. Addition of calcium oxide to water produces
  17. Celluloid is chemically
  18. Yellow glycerine is made into white, using
  19. Electric bulbs are made of __________ glass.
  20. Main constituents of natural rubber is
  21. Roasting of metallurgical ores is done mainly to
  22. In an integrated steel plant, NH3 present in coke oven gas is normally recovered as
  23. Fermentation is adversely affected by the
  24. The most economical pulp for the production of newsprint would be the __________ pulp.
  25. Phenol formaldehyde
  26. In multistage equilibrium conversion of SO2 to SO3 (2SO2 + O2 2SO3), the reverse reaction becomes appreciable…
  27. Which catalyst is used in the manufacture of ethylene oxide by oxidation of ethylene?
  28. Styrene-butadiene-rubber (SBR) as compared to natural rubber has
  29. Which of the following sugars is the sweetest?
  30. Good quality of edible salt is obtained from brine by the process of