Fire clay is __________ refractory material.

A. A basic

B. An acidic

C. A neutral

D. Not a

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  1. Haemoglobin is a/an
  2. Commonly used glass is known as the __________ glass.
  3. Trinitrotoluene (TNT), an explosive, is made by the nitration of
  4. Which glass is usually used in optical work?
  5. Which of the following is not present in bagasse fibre?
  6. Which of the following is not a pyrite ore?
  7. Catalytic oxidation-dehydrogenation of methyl alcohol produces
  8. Bleaching action of bleaching powder is due to its __________ properties.
  9. High magnesia lime is added to hot sugar cane juice (during the manufacture of sugar) to
  10. Sulphur addition in soap is done to
  11. Sudden temperature fluctuation does not affect pyrex glass, because of its
  12. __________ is used as a flux in the smelting of copper ore like chalcopyrite.
  13. How much temperature is maintained during quicklime manufacture in the calcination zone of the vertical…
  14. Prussian blue is chemically represented by
  15. The most economical pulp for the production of newsprint would be the __________ pulp.
  16. Massecuite is
  17. __________ process is used for the commercial production of nitric acid by the catalytic oxidation of…
  18. __________ is used as a flux in the extraction of iron from iron ore (haematite) in blast furnace.
  19. Pick out the wrong statement.
  20. Cumene (isopropyl benzene) is made by
  21. Soap cannot be used with hard water, because
  22. Which of the following is a detergent?
  23. Hydrazine is largely used
  24. Percentage of alcohol in beer may be around __________ percent.
  25. Oxidation of SO2 to SO3 is favoured by
  26. Thermosetting materials
  27. Poly Vinyl Chloride (P.V.C.) is a __________ material.
  28. __________ of rubber decreases after its vulcanisation.
  29. Chemical name of 'alum' is
  30. Which of the following is an explosive?