Sea water contains about ______________________ ppm of bromine ?

Related Mcqs:

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

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

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

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

3. Bromine is used in the preparation of___________________?

   A. Fire extinguishing compounds
   B. Fire proofing agents
   C. Dyes and antiknock compounds
   D. All A , B. and C.

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

   A. Osmosis
   B. Reverse osmosis
   C. Absorption
   D. Adsorption

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

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

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

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

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

   A. Reverse osmosis
   B. Sand filter
   C. Lime soda
   D. Permutit

9. Function of thinner in a paint is to ______________________ ?

   A. Accelerate the oxidation of oil
   B. Prevent gelling of the paint
   C. Suspend pigments & dissolve film forming materials
   D. Form a protective film

10. A good quality coal should have ______________________?

    A. Low fusion point of ash
    B. High ash content
    C. High sulphur content
    D. None of these