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Chemical Process - Section-15
  1. Main use of liquid nitrogen is in

    2. A.

     Rocket propulsion
    B.

     Making gun powder
    C.

     Detergent manufacture
    D.

     Refrigerative cooling

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  2. Pick out the wrong statement.

    3. A.

     Dry process is used for the manufacture of cement, when the raw material is blast furnace slag
    B.

     Portland cement is made employing wet process
    C.

     Gypsum is added to portland cement to lengthen its setting time
    D.

     None of these

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  3. Na₂CO₃ is called

    4. A.

     Washing soda
    B.

     Soda ash
    C.

     Plaster of paris
    D.

     Calcite

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  4. Na₂CO₃.10H₂O is called

    5. A.

     Washing soda
    B.

     Soda ash
    C.

     Slaked lime
    D.

     Quicklime

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  5. Naphthols are derivates of

    6. A.

     Methyl amine
    B.

     Naphthalene
    C.

     Phenol
    D.

     Xylene

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  6. Which of the following has sodium bicarbonate as its main constituent ?

    7. A.

     Baking soda
    B.

     Baking powder
    C.

     Washing soda
    D.

     None of these

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  7. Dehydrogenation of isopropanol produces

    8. A.

     Propyl alcohol
    B.

     Acetone
    C.

     Trichloroethylene
    D.

     Formaldehyde

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  8. Which of the following is the second major component of cement?

    9. A.

     Al₂O₃
    B.

     SiO₂
    C.

     CaO
    D.

     Fe₂O₃

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  9. The manufacture of Kraft pulp is done by a/an __________ process.

    10. A.

     Alkaline
    B.

     Acidic
    C.

     Neutral
    D.

     None of these

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  10. Commercially ethylene is produced from naphtha by

    11. A.

     Catalytic cracking
    B.

     Catalytic dehydrogenation
    C.

     Pyrolysis
    D.

     Hydrocracking

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