The major constituent of black liquor generated during paper manufacture is sodium___________________?

Related Mcqs:

1. Black liquor is converted into white liquor by __________________________?

   A. Evaporation and burning the concentrate followed by causticisation of products B. Multi-effect evaporation only C. Selective liquid extraction D. Extractive distillation...

2. In Kraft process of paper manufacture, white cooking liquor consists of caustic soda________________?

   A. Sodium sulphide & sodium carbonate B. Sodium sulphite & sodium carbonate C. Sodium sulphite & sodium sulphide D. None of these...

3. Bromides contained in hot mother liquor is treated with ______________ during manufacture of bromine from sea water ?

   A. SO3 B. Cl2 C. NH3 D. SO2...

4. ______________ paper is used in the manufacture of newsprint paper ?

   A. Ground-wood B. Board C. Tissue D. Wrapping...

5. Rosin soap is added during paper manufacture to____________________?

   A. Impart adhesive properties B. Improve opacity C. Impart resistance to penetration by liquids D. None of these...

6. Which of the following paper does not require a filler during manufacture ?

   A. Bond paper B. Writing paper C. Blotting paper D. Coloured paper...

7. Hollander beater used during paper pulp manufacture does not facilitate the ______________ of fiber?

   A. Cutting B. Fibrillation C. Hydration D. Strengthening...

8. The main aim behind cooling the digested chip at the bottom portion of the digestor by injecting cold black liquor is to___________________?

   A. Avoid mechanical weakening of fibre B. Remove lignin by way of crystallisation C. Increase the cellulose content D. None of these...

9. Tall oil obtained as a by-product from the black liquor recovery is________________?

   A. A black, sticky & viscous liquid B. Used in the manufacture of greases, emulsions & soaps C. Composed mainly of rosin & fatty acids D. All A , B. & C....

10. Which of the following is the main constituent of the mother liquor produced in salt industry ?

    A. Quick lime B. Glauber’s salt C. Salt petre D. Bromine...