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Chemical Process - Section-15
  1. Sizing material is incorporated in paper to

    2. A.

     Impart resistance to penetration by liquids
    B.

     Increase its thickness
    C.

     Increase its flexibility & opacity
    D.

     Increase its brightness

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  2. Chemical name of Grignard reagent is

    3. A.

     Sodium thiosulphate
    B.

     Ethyl magnesium chloride
    C.

     Sodium sulphite
    D.

     Sodium bicarbonate

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  3. In industrial nomenclature, alcohol means

    4. A.

     Butyl alcohol
    B.

     Propyl alcohol
    C.

     Ethanol
    D.

     Methyl alcohol

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  4. Addition of calcium oxide to water produces

    5. A.

     Exothermic heat
    B.

     Hissing sound
    C.

     Slaked lime
    D.

     All of the above

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  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

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  6. All enzymes are made of

    7. A.

     Fats
    B.

     Carbohydrates
    C.

     Proteins
    D.

     Amino acids

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  7. Reaction of an alcohol with organic acid is called the __________ reaction.

    8. A.

     Saponification
    B.

     Esterification
    C.

     Neutralisation
    D.

     Acidification

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  8. Impurities present in brine is normally removed by treatment with

    9. A.

     NH₃ and CO₂
    B.

     Lime and soda ash
    C.

     Lime, ammonia and carbon
    D.

     All of the above

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  9. Which of the following is an organo-metal-lic compound?

    10. A.

     Isopropyl alcohol
    B.

     Tetra-ethyl lead
    C.

     Zeolite
    D.

     Cumene

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  10. Analgesic drugs are

    11. A.

     Pain relievers
    B.

     Antibiotics
    C.

     Used in the treatment of T.B.
    D.

     Used in the treatment of typhiod

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