In primitive days, _____________ was being manufactured by Leblanc Process ?

Related Mcqs:

1. Le-Blanc process is a primitive process for the manufacture of___________________?

   A. Caustic soda
   B. Soda ash
   C. Bromine from sea water
   D. Hydrochloric acid

2. The compressive strength of cement should not be less than about 110Kg/cm2 after three days & not less than 170Kg/cm2 after seven days. The fineness of an ordinary cement as determined by turbidimetric method should be about ________________ cm2/gm?

   A. 800
   B. 1600
   C. 4000
   D. 8500

3. 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.

4. Platinum catalyst used in the earlier days of sulphuric acid manufacture by contact process suffers from the drawback like_________________?

   A. High cost
   B. Fragile nature
   C. Easy poisoning tendency
   D. All A, B. and C.

5. Nylon-6 is manufactured from ______________________ ?

   A. Caprolactam
   B. Hexamethylene diamine and adipic acid
   C. Hexamethylene diamine and Maleic anhydride
   D. Hexamethylene diamine and Sebacic acid

6. Nylon-66 is manufactured from____________________?

   A. Hexamethylene diamine and adipic acid
   B. Hexamethylene diamine and Maleic anhydride
   C. Caprolactam
   D. Dimethyl terephthalate and ethylene glycol

7. Triple superphosphate is manufactured by reacting ____________________?

   A. Phosphate rock with phosphoric acid
   B. Phosphate rock with sulphuric acid
   C. Phosphate rock with nitric acid
   D. Ammonium phosphate with phosphoric acid

8. Double Contact Double Absorption (DCDA) process is the most recent process for the manufacture of ____________________?

   A. Nitric acid
   B. Sulphuric acid
   C. Ammonium sulphate
   D. Hydrochloric acid

9. ______________ process is used for the manufacture of sodium carbonate by ammonia soda process?

   A. Ostwald’s
   B. Bosch
   C. Solvay
   D. Haber’s

10. Comparing sulphate process with sulphite process, we find that ______________ in the later ?

    A. Both temperature & pressure in the former is less than that
    B. Both temperature & pressure in the former is more than that
    C. Temperature is more in the former whereas pressure is more
    D. Pressure is more in the former whereas temperature is less