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 ?

Related Mcqs:

1. Wet chlorine gas produced during electrolysis of brine is dehydrated by__________________?

   A. Spraying 66° Be H2SO4 counter current to the flow of the gas
   B. Passing it through a bed of diatomaceous earth
   C. Passing it through a bed of silica gel
   D. None of these

2. What products do we get on electrolysis of saturated brine using steel cathode and graphite anode in an electrolytic cell ?

   A. Cl2 & Na
   B. Cl2 & H2
   C. O2 & H2
   D. Cl2, H2 & NaOH solution

3. 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

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

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

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. 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

9. Common salt is generally not produced commonly by ________________ method from brine ?

   A. Freeze drying
   B. Electrolytic
   C. Solar evaporation
   D. Vacuum evaporation

10. Bleaching powder (chemically known as calcium chloro hypochlorite) is commercially produced by the action of chlorine on ____________________?

    A. Slaked lime
    B. Soda lime
    C. Calcium perchlorate
    D. None of these