Which of the following is the most adverse factor challenging the choice of mercury electrolytic cell process for the production of caustic soda ?

Related Mcqs:

1. Diaphragm electrolytic cell as compared to mercury electrolytic cell_____________________?

   A. Produces 70% NaOH solution
   B. Requires less specific power consumption for the production of chlorine
   C. Requires lesser investment for similar capacity
   D. All A , B. and C

2. Mercury cells for caustic soda manufacture, compared to diaphragm cells___________________?

   A. Require lower initial investment
   B. Require more power
   C. Produce lower concentration NaOH
   D. None of these

3. Chlorine gas is produced by the electrolysis of brine (NaCl solution with solid NaCl make up) in mercury electrolytic cell. Which of the following is the anodic reaction ?

   A. Oxidation of Na+ ions
   B. Oxidation of Cl- ions
   C. Reduction of Na+ ions
   D. Reduction of Cl- ions

4. Concentration of NaOH solution produced by mercury electrolytic cell is about _______________ percent?

   A. 10
   B. 25
   C. 50
   D. 98

5. Mercury electrolytic cell produces 50-70% NaOH solution. Its operating temperature is ______________ °C?

   A. 25
   B. 60-70
   C. 150-200
   D. 250-300

6. Which of the following processes does not produce Cl2 as a co-product during the manufacture of caustic soda ?

   A. Diaphragm electrolytic cell process
   B. Mercury electrolytic cell process
   C. Lime-soda process
   D. None of these

7. Which of the following is a co-product during the manufacture of caustic soda by electrolysis of brine ?

   A. Na2CO3
   B. NaHCO3
   C. H2
   D. None of these

8. Exothermic neutralisation reaction between caustic soda and dodecylbenzene sulfonic acid produces sodium dodecylbenzene sulphate, which is a/an?

   A. Explosive
   B. Soap
   C. Detergent
   D. Analgesic drug

9. 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

10. In the production of soda ash by Solvay process, the by-product is____________________?

    A. CaCl2
    B. NH4Cl
    C. NH3
    D. NaOH