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Chemical Process - Section-15
  1. Triple superphosphate is manufactured by reacting

    2. A.

     Phosphate rock with phosphoric acid
    B.

     Phosphate rock with sulphuric acid
    C.

     Phosphate rock with nitric acid
    D.

     Ammonium phosphate with phosphoric acid

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  2. Teflon is

    3. A.

     Phenol formaldehyde
    B.

     An inorganic polymer
    C.

     Poly tetrafluoroethylene (P.T.F.E.)
    D.

     A monomer

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  3. In sulphate pulp manufacture, the pressure and temperature in the digestor is

    4. A.

     10 atm., 800 °C
    B.

     10 atm., 170-180°C
    C.

     1 atm., 170 - 180°C
    D.

     L atm., 800°C

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  4. Drinking (potable) water treatment does not involve

    5. A.

     Coagulation
    B.

     Sedimentation
    C.

     Softening
    D.

     Disinfection

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  5. Esterification reaction produces

    6. A.

     Detergent
    B.

     Vanaspati
    C.

     Soap
    D.

     Mercaptans

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  6. Sodium salt of higher molecular weight fatty acid is termed as the __________ soap.

    7. A.

     Hard
    B.

     Soft
    C.

     Metallic
    D.

     Lubricating

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  7. Terylene is

    8. A.

     Same as dacron
    B.

     A polyester
    C.

     Both A & B
    D.

     Neither A nor B

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  8. The chamber process is

    9. A.

     Preferred over contact process for producing 98 to 100% H₂SO₄ and various oleums
    B.

     Non-catalytic and operates only on pyrites
    C.

     A batch process for directly producing high strength (98 to 100%) H₂SO₄
    D.

     None of these

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  9. A cane sugar factory having sugar production rate of 10 tons/day will produce about __________ tons/day of bagasse (after consumption by the factory for heating etc.).

    10. A.

     1
    B.

     10
    C.

     25
    D.

     40

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  10. Which of the following is a detergent?

    11. A.

     Benzene hexachloride
    B.

     Alkyl benzene sulphonate
    C.

     Polytetraflouroethylene
    D.

     Cellulose nitrate

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