Home

Purity of oxygen used for blowing in steel making L.D. converter is 99.5%. The boiling point of oxygen is about __________ °C.

A. -53

B. -103

C. -183

D. -196

Please do not use chat terms. Example: avoid using "grt" instead of "great".

You can do it
  1. Carbon content of pitch (residue of coal tar distillation) is around __________ percent.
  2. Wax is a
  3. Deaeration of water in its treatment is necessary, as it
  4. Zeolite is used in the
  5. DDT should not be allowed to come in contact with iron (during its manufacture) to
  6. Ca(OH)2 is called
  7. Dacron is a/an
  8. Solvay process as compared to dual process(i.e. modified Solvay process).
  9. Styrene butadiene rubber (SBR) is
  10. Nickel is not used as a catalyst in the
  11. Stereospecific agents are exemplified by
  12. Flux addition during smelting of ore is done to
  13. Glass is
  14. The purpose of tanning in leather industry is to
  15. Styrene is produced from ethyl benzene by the process of
  16. The gasification reaction represented by, C + H2O = CO + H2, is a/an __________ reaction.
  17. The major constituents of glass are
  18. Fluorescent dyes are added in detergents to
  19. Sodium carbonate (soda ash) is not used in the manufacture of
  20. Metallic soap is __________ salt of fatty acids.
  21. Silicone is a/an
  22. Bakelite is chemically known as
  23. The process used for the manufacture of ethyl alcohol from molasses is
  24. Glycerine is recovered from lye by
  25. Which allotrope of sulphur is insoluble in carbon disulphide?
  26. Which is the most suitable dye for synthetic fibres?
  27. Which of the following additives/water proofing agents is added to lower the hydrophilic (moisture loving)…
  28. Production of one ton of cement requires about __________ tons of limestone.
  29. Digestion of wood-base materials (for manufacture of pulp) is done to
  30. Flash point of most vegetable oils is about __________ °C.