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Digestion of wood-base materials (for manufacture of pulp) is done to

A. Remove lignin

B. Produce long fibres

C. Prevent deterioration on storage

D. None of these

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  1. Pick out the wrong statement pertaining to the soap manufacture.
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  3. Lindane is
  4. Sugar content in sugarcane on cane basis is about __________ percent by weight.
  5. Enzymes are organic catalysts used in the __________ reactions.
  6. Metallic soap is __________ salt of fatty acids.
  7. Main constituents of Portland cement are calcium aluminate and
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  13. Mercury electrolytic cells are preferred over diaphragm electrolytic cell (for production of caustic…
  14. Exothermic neutralisation reaction between caustic soda and dodecylbenzene sulfonic acid produces sodium…
  15. Multistage catalytic converter is not used in the
  16. Sudden temperature fluctuation does not affect pyrex glass, because of its
  17. __________ process is used for producing soda ash.
  18. The compressive strength of cement should not be less than about 110Kg/cm2 after three days & not less…
  19. Commercial scale production of hydrogen from iron-steam reaction represented by, 3Fe + 3H2O = Fe3O4…
  20. Thermosetting plastic materials
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  25. Antibiotic
  26. Kopper-Totzek coal gasifier
  27. Dense soda ash used in the manufacture of glass, is chemically represented by
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  29. Highly porous refractory bricks are
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