Chalcopyrite is the main ore of

A. Copper

B. Lead

C. Tin

D. Iron

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  1. Styrene is produced from ethyl benzene by the process of
  2. Glauber's salt is chemically
  3. Thermosetting plastic materials
  4. Unsaturated oils compared to saturated oils have
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  6. __________ acid is an unsaturated fatty acid.
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  19. Fat splitting catalyst is
  20. The gasification reaction represented by, C + H2O = CO + H2, is a/an __________ reaction.
  21. Exothermic condensation reaction of monochlorobenzene with chloral in presence of 20% oleum as catalyst…
  22. High magnesia lime is added to hot sugar cane juice (during the manufacture of sugar) to
  23. Na2CO3.10H2O is called
  24. Penicillin is made employing __________ fermentation process.
  25. The purpose of tanning in leather industry is to
  26. Refractory bricks burnt at very high temperature have got
  27. Nitro-glycerine absorbed in wood flour, sodium nitrate or ammonium nitrate is commercially used as controlled…
  28. Adipic acid is an intermediate in the manufacture of
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