Lime and soda ash are added to water to remove ___________________?

Related Mcqs:

1. 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...

2. 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...

3. ____________________ process is used for producing soda ash?

   A. Chamber B. Chance C. Tromp D. Solvay...

4. 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...

5. Dense soda ash used in the manufacture of glass, is chemically represented by__________________?

   A. Na2CO3 B. Na2CO3.10H2O C. Na2CO3.H2O D. Na2HCO3...

6. Sodium carbonate (soda ash) is not used in the manufacture of___________________?

   A. Fire extinguishers B. Sugar C. Baking powder D. Detergents...

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

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

8. High magnesia lime is added to hot sugar cane juice (during the manufacture of sugar) to__________________?

   A. Flocculate the impurities B. Facilitate fast filtration C. Both A. and B. D. Neither A. nor B....

9. ______________ are added in lacquers to remove film brittleness and to improve adhereness?

   A. Film forming materials B. Plasticisers C. Diluents D. Solvents...

10. Use of hydrated lime in water treatment_________________?

    A. Before filtration, reduces the bacterial load on filters B. After filtration, combats the corrosiveness of water due to the presence of O2 & CO2 C. Is to adjust the pH value D. All A , B. and C....