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Superior quality laboratory apparatus is made of the __________ glass having low thermal coefficient of expansion & high chemical resistance.

A. Flint

B. Soda

C. Pyrex

D. Potash

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

You can do it
  1. Permanent hardness of water can be removed by
  2. Thermal pyrolysis of ethylene dichloride produces
  3. In the manufacture of H2SO4, vanadium catalyst as compared to platinum catalyst
  4. Absorption of SO3 in 97% H2SO4 is
  5. Sulphuric acid is mainly used in the __________ industry.
  6. Dacron is a/an
  7. Zeolite removes both temporary as well as permanent hardness of water by precipitating calcium and magnesium…
  8. Which of the following is not a product of coal tar distillation?
  9. Chloral is used in the manufacture of
  10. Chemical name of soda ash is
  11. The most popular and common detergent i.e., alkyl benzene sulfonate (ABS) is a/an __________ detergent.
  12. The function of gypsum addition during cement making is to
  13. A bio-catalyst produced by living cells which acts independent of the cell is called a/an
  14. Which of the following is an unsaturated fatty acid?
  15. For the hydrogenation of oils, __________ (i) __________ is commonly used as catalyst and __________…
  16. Bleaching of paper pulp is done with
  17. Which of the following is a constituent of coffee?
  18. Impurities present in brine is normally removed by treatment with
  19. Massecuite is
  20. Calgon used in water treatment is chemically
  21. Cellulose percentage in bamboo fibre is about
  22. Pick out the wrong statement pertaining to the soap manufacture.
  23. High magnesia lime is added to hot sugar cane juice (during the manufacture of sugar) to
  24. Glycerine is a by-product of the __________ industry.
  25. Cellulose content of bamboo and ideal fibrous raw material for the manufacture of paper is __________…
  26. Brackish water which contains mostly dissolved salt, can be purified by the __________ process.
  27. Highly porous refractory bricks are
  28. The terminology 'BTX' used in coal tar distillation industry refers to
  29. Insulin is an __________ drug.
  30. Phenolic antiseptics are added in the __________ soap.