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Chemical Process - Section-15
  1. BHC (Benzene hexachloride) is made by the chlorination of benzene

    2. A.

     Which is an addition reaction
    B.

     Which is a substitution reaction
    C.

     In absolute dark
    D.

     In presence of sunlight

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  2. Multistage catalytic converter is not used in the

    3. A.

     Conversion of SO₂ to SO₃
    B.

     NH₃ synthesis reaction
    C.

     Both A & B
    D.

     Neither A nor B

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  3. Temperature during hydrogenation of oil should not be more than 200°C, otherwise it will result in

    4. A.

     Pyrolysis of oil
    B.

     Sintering of porous catalyst
    C.

     Hydrogen embrittlement
    D.

     All of the above

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  4. Sand and __________ is fused at 1300°C, to produce sodium silicate.

    5. A.

     Limestone
    B.

     Soda ash
    C.

     Coke
    D.

     Sodium sulphate

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  5. Ca(OH)₂ is called

    6. A.

     Quicklime
    B.

     Slaked lime
    C.

     Limestone
    D.

     Gypsum

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  6. Calcination of gypsum produces

    7. A.

     Plaster of paris
    B.

     Salt cake
    C.

     Nitre cake
    D.

     Lime

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  7. CaO is called

    8. A.

     Quick lime
    B.

     Slaked lime
    C.

     Limestone
    D.

     Calcite

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  8. High temperature carbonisation of coal produces

    9. A.

     Inferior coke compared to low temperature carbonisation
    B.

     Less of gases compared to liquid products
    C.

     Larger quantity of tar compared to low temperature carbonisation
    D.

     None of these

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  9. Carborundum consists mainly of

    10. A.

     Bauxite
    B.

     Silicon carbide
    C.

     Boron carbide
    D.

     Calcium carbide

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  10. CaSO₄ .1/2 H₂O is known as

    11. A.

     Blue vitriol
    B.

     Plaster of Paris
    C.

     Gypsum
    D.

     Zeolite

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