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Chemical Process - Section-15
  1. Alum is commercially produced from

    2. A.

     Gypsum
    B.

     Feldspar
    C.

     Galena
    D.

     Bauxite

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  2. Which of the following is not an abrasive material ?

    3. A.

     Bakelite
    B.

     Pumice
    C.

     Corundum
    D.

     Carborundum

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  3. Ethanol amine is produced using ammonia and

    4. A.

     Ethyl benzene
    B.

     Ethylene oxide
    C.

     Ethanol
    D.

     Ethane

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  4. Hydrocynic acid (HCN) is used as an insecticide for

    5. A.

     Controlling timber degradation by ants
    B.

     Controlling poultry lice
    C.

     Potato beetle
    D.

     Citrus fruits

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  5. Sodium bisulphite is used for __________ water.

    6. A.

     Deaeration
    B.

     Dechlorination
    C.

     Both A & B
    D.

     Neither A nor B

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  6. Zeolite is used in the

    7. A.

     Water treatment
    B.

     Glass manufacture
    C.

     Hydrogenation of fatty oil as a catalyst
    D.

     Development of exposed photographic plate

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  7. Chloral is used in the manufacture of

    8. A.

     DDT
    B.

     BHC
    C.

     Parathion
    D.

     None of these

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  8. Mannheim furnace is used in the manufacture of

    9. A.

     Hydrochloric acid
    B.

     H₂SO₄ by Chamber process
    C.

     Calcium carbide
    D.

     Corundum

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  9. Fourdrinier machine is used in the manufacture of

    10. A.

     Nylon-6
    B.

     Paper
    C.

     Antibiotics
    D.

     Sugar

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  10. Yeast is used in the manufacture of

    11. A.

     Pencillin
    B.

     Antibiotics
    C.

     Wine
    D.

     Pasteurised milk

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