Menu
Home / Chemical Engineering / Chemical Process :: Section-15

Chemical Engineering :: Chemical Process

Chemical Process - Section 1
Chemical Process - Section 2
Chemical Process - Section 3
Chemical Process - Section 4
Chemical Process - Section 5
Chemical Process - Section 6
Chemical Process - Section 7
Chemical Process - Section 8
Chemical Process - Section 9
Chemical Process - Section 10
Chemical Process - Section 11
Chemical Process - Section 12
Chemical Process - Section 13
Chemical Process - Section 14
Chemical Process - Section-15
  1. Main constituent of limestone is

    2. A.

     CaCO₃
    B.

     MgCO₃
    C.

     Na₂CO₃
    D.

     CaSO₄

    View Answer

    Workspace

    Discuss Discuss in Forum

  2. Ethylene oxide is produced by oxidation of ethylene in presence of AgO catalyst at

    3. A.

     1 atm & 100°C
    B.

     5 atm & 275°C
    C.

     100 atm & 500°C
    D.

     50 atm & 1000°C

    View Answer

    Workspace

    Discuss Discuss in Forum

  3. Catalyst used in the hydrogenation of oil is

    4. A.

     Nickel
    B.

     Platinum
    C.

     Iron
    D.

     Alumina

    View Answer

    Workspace

    Discuss Discuss in Forum

  4. In the Lurgi coal gasifier

    5. A.

     Coking coals cannot be used
    B.

     Low carbon conversion efficiency is achieved
    C.

     Entrainment of solids is higher
    D.

     Large quantity of coal can be processed

    View Answer

    Workspace

    Discuss Discuss in Forum

  5. Use of chlorine in the treatment of sewage

    6. A.

     Helps in grease separation
    B.

     Increases the biological oxygen demand(BOD)
    C.

     Causes bulking of activated sludge
    D.

     Aids in flocculation

    View Answer

    Workspace

    Discuss Discuss in Forum

  6. Bleaching of paper pulp is done with

    7. A.

     Activated clay
    B.

     Bromine
    C.

     Chlorine or chlorine dioxide
    D.

     Magnesium sulphite

    View Answer

    Workspace

    Discuss Discuss in Forum

  7. __________ is produced using polycondensation reaction.

    8. A.

     Polythene
    B.

     Phenol formaldehyde
    C.

     Poly vinyl chloride
    D.

     None of these

    View Answer

    Workspace

    Discuss Discuss in Forum

  8. Flux addition during smelting of ore is done to

    9. A.

     Remove impurities/gangue
    B.

     Enhance rate of reaction
    C.

     Accelerate reduction of ore
    D.

     Separate slag from metal

    View Answer

    Workspace

    Discuss Discuss in Forum

  9. Pick out the wrong statement pertaining to the soap manufacture.

    10. A.

     Transparent soaps are made by cold process
    B.

     Organic pigments are used as colouring materials in the soap manufacture
    C.

     Both laundary as well as toilet soaps are manufactured by hot process
    D.

     Colourless rosin is used in the manufacture of laundary soaps

    View Answer

    Workspace

    Discuss Discuss in Forum

  10. Carbon disulphide is mainly used in the production of

    11. A.

     Viscose rayon
    B.

     Corundum
    C.

     Plasticiser for unsaturated polyester
    D.

     Paints

    View Answer

    Workspace

    Discuss Discuss in Forum

Java Programming Questions and Answers Interview Questions and Answers