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General Science - Synthetic Materials

  1. The major ingredient of leather is

    2. A.
    collagen
    B.
    carbohydrate
    C.
    polymer
    D.
    nucleic acid

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  2. What are the soaps?

    3. A.
    Salts of silicates
    B.
    Mixture of glycerol and alcohols
    C.
    Sodium or potassium salts of heavier fatty acids
    D.
    Esters of heavy fatty acids

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  3. How does common salt help in separating soap from the solution after saponification?

    4. A.
    By decreasing density of Soap
    B.
    By decreasing solubility of Soap
    C.
    By increasing density of Soap
    D.
    By increasing solubility of Soap

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  4. In vulcanisation, natural rubber is heated with

    5. A.
    Carbon
    B.
    Silicon
    C.
    Sulphur
    D.
    Phosphorous

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  5. Deep blue colour is imparted to glass by the presence of

    6. A.
    cupric oxide
    B.
    nickel oxide
    C.
    cobalt oxide
    D.
    iron oxide

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  6. Glass is made of the mixture of

    7. A.
    quartz and mica
    B.
    sand and silicates
    C.
    salt and quartz
    D.
    sand and salt

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  7. The vast resources of unutilised natural gas can be used in the production of

    8. A.
    graphite
    B.
    Synthetic petroleum
    C.
    fertilisers
    D.
    carbide

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  8. Paper is manufactured by

    9. A.
    Wood and resin
    B.
    Wood, sodium and bleaching powder
    C.
    Wood, calcium, hydrogen sulphite and resin
    D.
    Wood and bleaching powder

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  9. Gypsum is added to cement clinker to

    10. A.
    increase the tensile strength of cement
    B.
    decrease the rate of setting of cement
    C.
    facilitate the formation of colloidal gel
    D.
    bind the particles of calcium silicate

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  10. Soap is a mixture of sodium or potassium salts of

    11. A.
    dicarboxylic acids
    B.
    monocarboxylic acids
    C.
    glycerol
    D.
    tricarboxylic acids

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