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Chemical Engineering :: Chemical Process

  1. Chemical formula of BHC, which is an insecticide is

  2. A.
    C6H6Cl6
    B.
    C6Cl6
    C.
    C6H5Cl
    D.
    C6H4Cl2

  3. A bio-catalyst produced by living cells which acts independent of the cell is called a/an

  4. A.
    substrate
    B.
    enzyme
    C.
    nutrient
    D.
    none of these

  5. Pick out the wrong statement.

  6. A.
    DDT is manufactured by the condensation of chlorobenzene with chloral at 30°C in presence of oleum, which is a highly exothermic reaction.
    B.
    Chloral is obtained by the chlorination of ethyl alcohol.
    C.
    Insecticides acting on the insects through the respiratory system are called fumigants.
    D.
    Benzene hexachloride is not a contact insecticide.

  7. The product obtained on mixing calcium oxide with water is called

  8. A.
    quicklime
    B.
    slaked lime
    C.
    milk of lime
    D.
    none of these

  9. The major constituent of black liquor generated during paper manufacture is sodium

  10. A.
    sulphate
    B.
    carbonate
    C.
    hydroxide
    D.
    bi-carbonate

  11. Plaster of Paris is

  12. A.
    CaSO4.H2O
    B.
    used for setting of broken bones
    C.
    both (a) and (b)
    D.
    same as gypsum

  13. Exothermic neutralisation reaction between caustic soda and dodecylbenzene sulphonic acid produces sodium dodecylbenzene sulphate, which is a/an

  14. A.
    explosive
    B.
    soap
    C.
    detergent
    D.
    analgesic drug

  15. Conversion of SO2 to SO3 in Monsanto 4-pass converter is about __________ percent.

  16. A.
    80
    B.
    90
    C.
    98
    D.
    100

  17. Coke oven gas consists mainly of

  18. A.
    H2, & CH4
    B.
    CO, & CO2
    C.
    H2, & CO
    D.
    CH4, & CO

  19. Chemical name of 'alum' is

  20. A.
    barium sulphate.
    B.
    aluminium sulphate.
    C.
    aluminium chloride.
    D.
    calcium sulphate.