A. CaCl2
B. NH4Cl
C. NH3
D. NaOH
Related Mcqs:
- Commercial production of soda ash by Solvay process requires limestone, ___________________ as raw materials?
A. Coke and sand
B. Brine and coal
C. Coke and caustic soda
D. None of these - Which of the following may be viewed as a catalyst in the manufacture of soda ash by Solvay process ?
A. NH3
B. NaCl
C. CaO
D. Coke - Which of the following is not required in the manufacture of soda ash by Solvay process ?
A. Ammonia
B. Limestone
C. Nitric acid
D. None of these - 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. - ____________________ process is used for producing soda ash?
A. Chamber
B. Chance
C. Tromp
D. Solvay - Lime and soda ash are added to water to remove ___________________?
A. Bicarbonates & sulphates of calcium and magnesium
B. Undesirable taste and odour
C. Bacteria
D. Its corrosiveness - Dense soda ash used in the manufacture of glass, is chemically represented by__________________?
A. Na2CO3
B. Na2CO3.10H2O
C. Na2CO3.H2O
D. Na2HCO3 - Sodium carbonate (soda ash) is not used in the manufacture of___________________?
A. Fire extinguishers
B. Sugar
C. Baking powder
D. Detergents - In the Solvay process, the product from the calciner is___________________?
A. Light soda ash
B. Dense soda ash
C. Sodium bicarbonate
D. Dehydrated soda ash - Which of the following is the most adverse factor challenging the choice of mercury electrolytic cell process for the production of caustic soda ?
A. High cost of mercury
B. High specific gravity of mercury
C. Non-availability of high purity mercury
D. Pollution of water stream by mercury
