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__________ glass is used for the manufacture of optical glass.

A. Pyrex

B. Soda

C. Flint

D. Crooke's

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

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  1. Fatty material used in soap making is
  2. Molasses is the starting material for the production of
  3. Bakelite is
  4. __________ glass has the lowest co-efficient of thermal expansion and hence is more heat resistant.
  5. Exothermic neutralisation reaction between caustic soda and dodecylbenzene sulfonic acid produces sodium…
  6. Sodium bisulphite is used for __________ water.
  7. Wax is a
  8. Refractory bricks burnt at very high temperature have got
  9. Which is the main reducing agent during production of iron from iron ore in a blast furnace?
  10. __________ is produced using molasses as the starting raw material.
  11. The main use of activated carbon in water treatment is to control
  12. Which is a high grade pulp?
  13. Bitterns is a/an
  14. Plasticisers are added to paints to
  15. Pick out the wrong statement.
  16. Starting material for the production of styrene butadiene rubber (SBR) is
  17. Kopper-Totzek coal gasifier
  18. Frasch process is for
  19. BHC (Benzene hexachloride) is made by the chlorination of benzene
  20. Ore concentration by froth floatation utilises the __________ of ore particles.
  21. Solvay process as compared to dual process(i.e. modified Solvay process).
  22. Fourdrinier machine is used in the manufacture of
  23. Low temperature carbonisation of coal takes place at __________ °C.
  24. Metallic soap (e.g. aluminium or calcium salts of fatty acids) can be used
  25. Chemical name of aspirin (an analgesic drug) is
  26. The only commercial Fischer-Tropsch plant for producing liquid hydrocarbon fuel from coal is located…
  27. Sucrose content in cane sugar may be around __________ percent.
  28. Mannheim furnace is used in the manufacture of
  29. Antibiotic
  30. Fumigant insecticides