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Chemical Engineering :: Chemical Process

  1. Calgon used in water treatment is chemically

  2. A.
    sodium phosphate
    B.
    sodium hexametaphosphate
    C.
    calcium phosphate
    D.
    tricresyl phosphate

  3. Which oil is preferred for paint manufacture ?

  4. A.
    Drying oil
    B.
    Non-drying oil
    C.
    Semi-drying oil
    D.
    Saturated oil

  5. Styrene butadiene rubber (SBR) is

  6. A.
    a natural rubber.
    B.
    a synthetic polymer.
    C.
    a synthetic monomer.
    D.
    another name of silicone rubber.

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

  8. A.
    1 atm & 100°C
    B.
    5 atm & 275°C
    C.
    100 atm & 500°C
    D.
    50 atm & 1000°C

  9. Glycerine is not used in the

  10. A.
    manufacture of explosive.
    B.
    conditioning and humidification of tobacco.
    C.
    manufacture of pharmaceuticals.
    D.
    none of these.

  11. Cumene is the starting material for the production of

  12. A.
    benzoic acid
    B.
    phenol and acetone
    C.
    isoprene
    D.
    styrene

  13. The type of high refractive index glass used in optical instruments is __________ glass.

  14. A.
    pyrex
    B.
    flint
    C.
    crookes
    D.
    none of these

  15. Oxidation of ortho-xylene in presence of __________ catalyst is done to produce phthalic anhydride on commercial scale.

  16. A.
    nickel
    B.
    vanadium
    C.
    alumina
    D.
    iron

  17. Most commonly used rubber vulcanising agent is

  18. A.
    sulphur
    B.
    bromine
    C.
    platinum
    D.
    alumina

  19. Terylene is

  20. A.
    same as dacron
    B.
    a polyester
    C.
    both (a) & (b)
    D.
    neither (a) nor(b)