Separation of fresh water from sea water can be done by the _______________ operation ?

Related Mcqs:

1. Sodium chloride content in sea water is about _______________ gms/liter?

   A. 2
   B. 10
   C. 25
   D. 50

2. Commercial production of Vanaspati is done by _______________ of edible vegetable oils ?

   A. Hydrogenation
   B. Oxidation
   C. Hydrolysis
   D. Hydrocracking

3. Sea water contains about ______________________ ppm of bromine ?

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

4. Which of the following is not produced commercially from sea water ?

   A. Magnesium & potassium compounds
   B. Common salt
   C. Bromine
   D. Iodine

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

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

6. Bromine content in sea water may be around _________________ ppm?

   A. 70
   B. 640
   C. 1875
   D. 2500

7. Which of the following is not produced on commercial scale from sea water ?

   A. Bromine
   B. Magnesium compounds
   C. Potassium compounds
   D. Sodium sulphate

8. Cement setting under water employs a/an _______________ process ?

   A. Hydration
   B. Decomposition
   C. Oxidation
   D. Reduction

9. Zeolite removes both temporary as well as permanent hardness of water by precipitating calcium and magnesium present in water as insoluble zeolites. Used zeolite is regenerated by flushing with the solution of_____________________?

   A. Calcium sulphate
   B. Sodium chloride
   C. Sodium sulphate
   D. Magnesium chloride

10. A unit operation is exemplified by the process of ___________________?

    A. Reduction
    B. Desorption
    C. Nitration
    D. Combustion