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

Chemical Engineering :: Chemical Process

  1. Saponification number of an oil or fat

  2. A.

     Gives an idea about its molecular weight

    B.

     Is inversely proportional to its molecular weight

    C.

     Detects its adulteration

    D.

     All of the above


  3. The difference between saponification value and acid value is

  4. A.

     Called ester value

    B.

     Always negative

    C.

     Constant for all fatty oils

    D.

     None of these


  5. Hydrogenation of oil takes place in a/an __________ reactor.

  6. A.

     Autothermal

    B.

     Trickle bed

    C.

     Plug flow

    D.

     None of these


  7. Celluloid is chemically

  8. A.

     Cellulose acetate

    B.

     Regenerated cellulose

    C.

     Cellulose nitrate

    D.

     Cellulose acetate butyrate


  9. Cement mainly contains

  10. A.

     CaO, SiO₂, Al2O₃

    B.

     MgO, SiO₂, K₂O

    C.

     Al2O₃, MgO, FE₂O₃

    D.

     CaO, MgO, K₂O


  11. Chemical formula of oleum is

  12. A.

     H₂SO₃

    B.

     H₂SO₄

    C.

     H₂S₂O₇

    D.

     H₂SO₇


  13. Chemical name of 'alum' is

  14. A.

     Barium sulphate

    B.

     Aluminium sulphate

    C.

     Aluminium chloride

    D.

     Calcium sulphate


  15. Chemical name of soda ash is

  16. A.

     Sodium bicarbonate

    B.

     Sodium thiosulphate

    C.

     Potassium carbonate

    D.

     None of these


  17. Main product in calcium carbide-water reaction is

  18. A.

     Ca(OH)₂

    B.

     C₂H₂

    C.

     CO₂

    D.

     CaCO₃


  19. CaCl(OCl) is the chemical formula of

  20. A.

     Hypo

    B.

     Bleaching powder

    C.

     Plaster of paris

    D.

     Aqua regia