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Vanillin is a type of

A. Anti-pyretic drug

B. Food preservative

C. Flavour

D. Dye

Correct Answer : C.


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  1. Chemical formula of BHC, which is an insecticide is
  2. Bakelite is chemically known as
  3. Solvent used for extraction of oil is
  4. Co-efficient of thermal expansion of glass is decreased by the addition of __________ during its manufacture.
  5. Chloramines are used in water treatment for
  6. Dehydrogenation of ethyl benzene produces
  7. Ore concentration by froth floatation utilises the __________ of ore particles.
  8. Which of the following may be viewed as a catalyst in the manufacture of soda ash by Solvay process?
  9. Production of alcohol by fermentation of molasses is a/an __________ process.
  10. Dacron is a
  11. The major use of butadiene is
  12. The catalyst used in shift converter is
  13. Neoprene is a
  14. Major component of flint glass is
  15. Phenol formaldehyde is produced by condensation polymerisation. It is also known as
  16. Glauber's salt is chemically
  17. Which of the following is the purest form of water out of the following?
  18. Bleaching of paper pulp is done with
  19. A mineral is termed as 'ore', if
  20. Reaction of an alcohol with organic acid is called the __________ reaction.
  21. Presence of sodium tripolyphosphate (an additive) in synthetic detergent
  22. Which of the following is an ore of iron?
  23. In sulphate pulp manufacture, the pressure and temperature in the digestor is
  24. __________ of rubber decreases after its vulcanisation.
  25. Yellow phosphorus is transported under
  26. Litharge is
  27. Commercial scale production of hydrogen from iron-steam reaction represented by, 3Fe + 3H2O = Fe3O4…
  28. Raw materials used for producing __________ cement does not contain iron oxide.
  29. Fat dispersed in water is exemplified by
  30. Which is the main reducing agent during production of iron from iron ore in a blast furnace?