Brackish water which contains mostly dissolved salt, can be purified by the __________________ process?

Related Mcqs:

1. Use of water having dissolved oxygen in boilers promotes___________________?

   A. Corrosion
   B. Sequestration
   C. Scale formation
   D. None of these

2. Good quality of edible salt is obtained from brine by the process of__________________?

   A. Solar evaporation
   B. Vacuum evaporation
   C. Freeze drying
   D. Electrolysis

3. Solvay process as compared to dual process (i.e. modified Solvay process) ?

   A. Can use low grade brine
   B. Has less corrosion problems
   C. Involves higher investment in NH3 recovery units than that for crystallisation units for NH4Cl
   D. Both B. and C.

4. Sea water contains about ______________________ ppm of bromine ?

   A. 5
   B. 70
   C. 500
   D. 1700

5. Chemical formula of ‘salt cake’ is____________________?

   A. Na2SO4
   B. CaSO4
   C. MgSO4
   D. BaSO4

6. Salt is added in the kettle during soap manufacture to separate ___________________?

   A. Soap from lye
   B. Glycerine from lye
   C. The metallic soap
   D. The unsaponified fat from soap

7. Salt cake is chemically represented by_________________?

   A. Na2SO4
   B. CaSO4. ½H2O
   C. MgSO4
   D. BaSO4

8. Sodium salt of higher molecular weight fatty acid is termed as the ______________________ soap?

   A. Hard
   B. Soft
   C. Metallic
   D. Lubricating

9. Glauber’s salt is chemically represented by____________________?

   A. Na2SO4.10H2O
   B. CaCl(OCl)
   C. CaSO4.H2O
   D. (NH4)2SO4

10. An alkali metal salt of Palmitic acid is known as _____________________?

    A. Soap
    B. Metallic soap
    C. Detergent
    D. Alkaloid