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Direct conversion of chemical energy into electrical energy is done in a

A. Magnetohydrodynamic (MHD) generator

B. Fuel cell

C. Fast breeder reactor

D. None of these

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  1. __________ is an ore concentrating metallurgical process involving a chemical change.
  2. The basic constituent of vegetable oils is
  3. White phosphorous is stored under water, because
  4. Margarine is a/an
  5. In the manufacture of viscose rayon, the raw material used industrially is
  6. Transparent soaps (e.g. Pears) are
  7. Vanillin is a type of
  8. Teflon is
  9. Glauber's salt is chemically
  10. High temperature carbonisation of coal takes place at __________ °C.
  11. Soap cannot be used with hard water, because
  12. The major constituent of black liquor generated during paper manufacture is sodium
  13. In primitive days, __________ was being manufactured by Leblanc Process.
  14. Flash point of most vegetable oils is about __________ °C.
  15. Transportation of 35% oleum during winter suffers from the problem of freezing, which can be overcome…
  16. All enzymes are made of
  17. Alcohol percentage in molasses may be around
  18. The biochemical treatment applied to sewage effluents is a process of
  19. Salt is the basic raw material for the manufacture of
  20. Tall oil obtained as a by-product from the black liquor recovery is
  21. Low temperature carbonisation of coal takes place at __________ °C.
  22. Fire clay is __________ refractory material.
  23. Kaolin is a/an
  24. Sucrose content in cane sugar may be around __________ percent.
  25. Which of the following paper does not require a filler during manufacture?
  26. Cellulose content of bamboo and ideal fibrous raw material for the manufacture of paper is __________…
  27. Percentage of uranium in Carnotite ore found in Jadugoda (Jharkhand) is about
  28. Basic oxide is absent in __________ glass.
  29. Brackish water which contains mostly dissolved salt, can be purified by the __________ process.
  30. Out of the following processes of paper pulp manufacture, the maximum corrosion problem in digestion…