A. Bromine
B. Magnesium compounds
C. Potassium compounds
D. Sodium sulphate
Related Mcqs:
- Helium is produced on commercial scale from__________________?
A. Air
B. Natural gas
C. Coke oven gas
D. None of these - Which of the following is not produced commercially from sea water ?
A. Magnesium & potassium compounds
B. Common salt
C. Bromine
D. Iodine - Oxidation of ortho-xylene in presence of ______________ catalyst is done to produce phthalic anhydride on commercial scale ?
A. Nickel
B. Vanadium
C. Alumina
D. Iron - Commercial scale production of hydrogen from iron-steam reaction represented by, 3Fe + 3H2O = Fe3O4 + 4H2, is not practised, as it is __________________?
A. A slow reaction
B. A discontinuous reaction (requiring regeneration of iron by water gas intermittently)
C. Still in development stage (by employing fluidised bed technique)
D. All A , B. and C - Separation of fresh water from sea water can be done by the _______________ operation ?
A. Osmosis
B. Reverse osmosis
C. Absorption
D. Adsorption - Sea water contains about ______________________ ppm of bromine ?
A. 5
B. 70
C. 500
D. 1700 - Bromides contained in hot mother liquor is treated with ______________ during manufacture of bromine from sea water ?
A. SO3
B. Cl2
C. NH3
D. SO2 - Sodium chloride content in sea water is about _______________ gms/liter?
A. 2
B. 10
C. 25
D. 50 - Bromine content in sea water may be around _________________ ppm?
A. 70
B. 640
C. 1875
D. 2500 - Commercial production of Vanaspati is done by _______________ of edible vegetable oils ?
A. Hydrogenation
B. Oxidation
C. Hydrolysis
D. Hydrocracking
