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Sodium chloride content in sea water is about __________ gms/litre.

A. 2

B. 10

C. 25

D. 50

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

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  1. Refractory bricks having high thermal conductivity is desirable, when it is to be used in the
  2. In primitive days, __________ was being manufactured by Leblanc Process.
  3. Mannheim furnace is used in the manufacture of
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  5. Vanillin is a type of
  6. Glass is
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  8. The metallic aluminium is obtained from pure alumina in the presence of fused cryolite by
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  10. Which of the following is a detergent?
  11. Process conditions in fermentator used for production of penicillin is
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  13. Black liquor is converted into white liquor by
  14. Metallic soap is __________ salt of fatty acids.
  15. __________ glass is used for the manufacture of optical glass.
  16. Most commonly used rubber vulcanising agent is
  17. Main constituents of natural rubber is
  18. Polymerisation product of C2F4 (carbon tetrafluoride) is called P.T.F.E (poly chloro tetra fluoro ethylene).…
  19. Which of the following is the main constituent of the mother liquor produced in salt industry?
  20. Mercury cells for caustic soda manufacture, compared to diaphragm cells
  21. Titanium dioxide is a/an __________ colour pigment.
  22. Hydrazine is used in water treatment for the removal of
  23. Production of one ton of cement requires about __________ tons of limestone.
  24. Esterification reaction produces
  25. Multistage catalytic converter is not used in the
  26. Low temperature carbonisation of coal takes place at __________ °C.
  27. Finely ground calcium aluminate & silicate is a/an
  28. __________ paper is used in the manufacture of newsprint paper.
  29. High magnesia lime is added to hot sugar cane juice (during the manufacture of sugar) to
  30. Sea water contains about __________ ppm of bromine.