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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

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  3. Which oil is preferred for paint manufacture ?

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

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  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.

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  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

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  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.

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  11. Cumene is the starting material for the production of

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

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  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

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  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

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  17. Most commonly used rubber vulcanising agent is

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

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  19. Terylene is

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

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