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Chemical Engineering :: Chemical Process

  1. The ideal pulp for the manufacture of paper should have high __________ content.

  2. A.

     Cellulose

    B.

     Lignin

    C.

     Both A & B

    D.

     None of these


  3. __________ glass has the lowest co-efficient of thermal expansion and hence is more heat resistant.

  4. A.

     Pyrex

    B.

     Soda lime

    C.

     Lead

    D.

     High silica


  5. Rotary kiln is not involved in the production of

  6. A.

     Cement

    B.

     Lime from limestone

    C.

     Slaked lime from quick lime

    D.

     None of these


  7. Which is the main reducing agent during production of iron from iron ore in a blast furnace?

  8. A.

     C

    B.

     CO

    C.

     CO₂

    D.

     H₂


  9. Which of the following is a constituent of vinegar?

  10. A.

     Around 10% alcohol

    B.

     Around 1% acetic acid

    C.

     Both A and B

    D.

     Neither A nor B


  11. The most popular and common detergent i.e., alkyl benzene sulfonate (ABS) is a/an __________ detergent.

  12. A.

     Cationic

    B.

     Anionic

    C.

     Amphoteric

    D.

     Semi polar


  13. __________ acid is an unsaturated fatty acid.

  14. A.

     Palmitic

    B.

     Oleic

    C.

     Stearic

    D.

     Oxalic


  15. Carbon content of pitch (residue of coal tar distillation) is around __________ percent.

  16. A.

     70

    B.

     55

    C.

     80

    D.

     94


  17. Alum is commercially produced from

  18. A.

     Gypsum

    B.

     Feldspar

    C.

     Galena

    D.

     Bauxite


  19. Which of the following is not an abrasive material ?

  20. A.

     Bakelite

    B.

     Pumice

    C.

     Corundum

    D.

     Carborundum