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

Related Mcqs:

1. Baking soda is chemically represented by__________________?

   A. Na2CO3
   B. NaHCO3
   C. Na2CO3.H2O
   D. Na2CO3.10H2O

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. 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

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

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

5. Washing soda is chemically represented by _________________?

   A. Na2CO3
   B. Na2CO3.H2O
   C. Na2CO3.10H2O
   D. NaHCO3

6. Prussian blue is chemically represented by__________________?

   A. FeO.TiO2
   B. Ca SO4 . 2H2O
   C. Fe4 [Fe (CN6)3]
   D. AlF3 . 3NaF

7. ___________________ glass is used for the manufacture of optical glass ?

   A. Pyrex
   B. Soda
   C. Flint
   D. Crooke’s

8. 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

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