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Chemical Engineering :: Chemical Process

  1. Sugar content in sugarcane on cane basis is about __________ percent by weight.

  2. A.
    1 to 5
    B.
    5 to 10
    C.
    15 to 20
    D.
    20 to 30

  3. Pick out the wrong statement.

  4. A.
    Wine, rum & Vodka are prepared by the formulation of fruit juice, sugar beet & rye respectively.
    B.
    Protein catalysts are called enzymes.
    C.
    The rate of chemical reaction is independent of the concentration of reactants at high concentration of enzymes.
    D.
    Total sugar content in molasses is about 10%.

  5. The major use of butadiene is

  6. A.
    as a plasticiser for unsaturated polyester.
    B.
    in the manufacture of synthetic rubber.
    C.
    as an anti-skinning agent in paint.
    D.
    none of these.

  7. The manufacture of Kraft pulp is done by a/an __________ process.

  8. A.
    alkaline
    B.
    acidic
    C.
    neutral
    D.
    none of these

  9. Antibiotic

  10. A.
    inhibits/destroys the growth of microorganisms.
    B.
    is used as a pain reliever.
    C.
    is an antimalarial.
    D.
    is an anaesthetic.

  11. Which of the following paper does not require a filler during manufacture ?

  12. A.
    Bond paper
    B.
    Writing paper
    C.
    Blotting paper
    D.
    Coloured paper

  13. Industrial production of chloroform requires acetone and

  14. A.
    phosgene
    B.
    calcium hypochlorite
    C.
    chlorine
    D.
    ammonium chloride

  15. Pencillin, an antibiotic drug was discovered by

  16. A.
    Alexender
    B.
    Flaming
    C.
    Dr. Zivago
    D.
    none of these

  17. Styrene (a monomer for the production of polystyrene) is commercially produced by

  18. A.
    catalytic dehydrogenation of ethyl benzene.
    B.
    dehydration of ethyl alcohol followed by hydrogenation.
    C.
    reacting ethylene oxide with acetal-dehyde.
    D.
    fermentation of starch.

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

  20. A.
    autothermal
    B.
    trickle bed
    C.
    plug flow
    D.
    none of these