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Chemical Engineering :: Chemical Process

  1. Black liquor is converted into white liquor by

  2. A.
    evaporation and burning the concentrate followed by causticisation of products.
    B.
    multi-effect evaporation only.
    C.
    selective liquid extraction.
    D.
    extractive distillation.

  3. Varnish does not contain

  4. A.
    thinner
    B.
    pigment
    C.
    both (a) & (b)
    D.
    neither (a) nor (b)

  5. Alcohol is produced by the

  6. A.
    oxidation of an aldehyde
    B.
    hydrolysis of an ether
    C.
    esterification of a fat
    D.
    none of these

  7. Varnish does not contain

  8. A.
    pigment
    B.
    thinner
    C.
    dryer
    D.
    anti-skimming agent

  9. Polymerisation product of C2F4 (carbon tetraflouride) is called P.T.F.E (poly chloro tetra flouro ethylene). It is also called

  10. A.
    polyurethane
    B.
    silicone
    C.
    teflon
    D.
    epoxy resin

  11. Solvent used for extraction of oil is

  12. A.
    hexane
    B.
    methyl ethyl ketone
    C.
    furfurol
    D.
    none of these

  13. Insulin is an __________ drug.

  14. A.
    anti-malarial
    B.
    anti-TB
    C.
    antibiotic
    D.
    none of these

  15. Liquor poisoning generally occurs due to the presence of __________ in it.

  16. A.
    ethyl alcohol
    B.
    impurities
    C.
    methyl alcohol
    D.
    carbonic acid

  17. Neoprene is chemically known as

  18. A.
    polybutadiene
    B.
    styrene butadiene rubber (SBR)
    C.
    polyurathane
    D.
    polychloroprene

  19. Pick out the wrong statement.

  20. A.
    Chamber process of sulphuric acid manufacture produces pure acid of concentration < 80%.
    B.
    Contact process of sulphuric acid manufacture produces pure acid of concentration ≥ 98%.
    C.
    75% oleum can be produced by distillation of 20% oleum.
    D.
    Contact process of sulphuric acid manufacture uses nickel as the catalyst.