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Chemical Engineering :: Chemical Process

  1. Fermentator temperature during production of alcohol from molasses is around __________ °C.

  2. A.

     5

    B.

     30

    C.

     150

    D.

     300


  3. Vinyl chloride (CH₂ = CH.Cl) is produced by the thermal pyrolysis of ethylene dichloride at a pressure & temperature of

  4. A.

     4 kgf/cm² & 500°C

    B.

     10 kgf/cm² & 1000°C

    C.

     40 kg/cm² & 200°C

    D.

     100 kgi/cm² & 500°C


  5. __________ process is used for the commercial production of nitric acid by the catalytic oxidation of ammonia.

  6. A.

     Solvay

    B.

     Ostwald's

    C.

     Haber's

    D.

     None of these


  7. Phosphate rock is a raw material for the manufacture of

  8. A.

     Phosphoric acid

    B.

     Phosphorous

    C.

     Superphosphates

    D.

     All of the above


  9. Carbon tetrachloride (CCl₄) is the starting raw material for the manufacture of

  10. A.

     Trichloroethylene

    B.

     Perchloroethylene

    C.

     Parathion

    D.

     Methanol


  11. Salt is the basic raw material for the manufacture of

  12. A.

     Cement

    B.

     Glass

    C.

     Potteries

    D.

     Caustic soda


  13. Fatty material used in soap making is

  14. A.

     Fatty acid

    B.

     Fatty alcohols

    C.

     Tallow

    D.

     Detergents


  15. Lubricating greases are a mixture of

  16. A.

     Mineral oil, soap and additives

    B.

     Mineral oil and metallic soap

    C.

     Mineral oil and fatty oil

    D.

     Fatty oil and metallic soap


  17. Hydrogenation of edible vegetable oils

  18. A.

     Is an exothermic reaction

    B.

     Increases their melting point

    C.

     Is done in presence of nickel catalyst

    D.

     All of the above


  19. Rancidity of the fatty oil can be reduced by its

  20. A.

     Decoloration

    B.

     Hydrogenation

    C.

     Oxidation

    D.

     Purification