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Chemical Engineering :: Chemical Process

  1. Cellulose content of bamboo and ideal fibrous raw material for the manufacture of paper is __________ percent.

  2. A.

     10

    B.

     50

    C.

     80

    D.

     95


  3. Molecular weights of polymers are in the range of

  4. A.

     10² - 10²

    B.

     10⁵ - 10⁹

    C.

     10² - 10⁷

    D.

     10⁹ - 10¹¹


  5. Which of the following is not required in the manufacture of soda ash by Solvay process?

  6. A.

     Ammonia

    B.

     Limestone

    C.

     Nitric acid

    D.

     None of these


  7. Which of the following may be viewed as a catalyst in the manufacture of soda ash by Solvay process?

  8. A.

     NH?

    B.

     NaCl

    C.

     CaO

    D.

     Coke


  9. Which of the following is the purest form of water out of the following ?

  10. A.

     Underground water

    B.

     Rain water

    C.

     Well water

    D.

     Lake water


  11. Starting raw material for the manufacture of maleic anhydride is

  12. A.

     N-butene

    B.

     Benzene

    C.

     Either A or B

    D.

     Neither A nor B


  13. Catalyst used during the manufacture of 'Vanaspati Ghee' is

  14. A.

     Zinc

    B.

     Nickel

    C.

     Platinum

    D.

     Copper


  15. Fat splitting catalyst is

  16. A.

     CaCO₃

    B.

     ZnO

    C.

     Al2O₃

    D.

     Fe


  17. Fats as compared to oils have

  18. A.

     More unsaturated glycerides of fatty acids

    B.

     Less unsaturated glycerides of fatty acids

    C.

     Much higher reactivity to oxygen

    D.

     Lower melting point


  19. Vegetable oils and fats basically differ in their

  20. A.

     Density ranges

    B.

     Physical state

    C.

     Chemical composition

    D.

     Chemical properties