Washing soda is chemically represented by _________________?

Related Mcqs:

1. Baking soda is chemically represented by__________________?

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

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

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

3. Prussian blue is chemically represented by__________________?

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

4. Salt cake is chemically represented by_________________?

   A. Na2SO4
   B. CaSO4. ½H2O
   C. MgSO4
   D. BaSO4

5. Glauber’s salt is chemically represented by____________________?

   A. Na2SO4.10H2O
   B. CaCl(OCl)
   C. CaSO4.H2O
   D. (NH4)2SO4

6. Zeolite used in water softening process (cation exchange) is regenerated by washing with___________________?

   A. Brine
   B. Chloramines
   C. Sodium bisulphite
   D. Liquid chlorines

7. The gasification reaction represented by, C + H2O = CO + H2, is a/an _________________ reaction?

   A. Exothermic
   B. Endothermic
   C. Catalytic
   D. Autocatalytic

8. Neoprene is chemically known as___________________?

   A. Polybutadiene
   B. Styrene butadiene rubber (SBR)
   C. Polyurethane
   D. Polychlorophrene

9. Calgon used in water treatment is chemically ____________________?

   A. Sodium phosphate
   B. Sodium hexametaphosphate
   C. Calcium phosphate
   D. Tricresyl phosphate

10. Bakelite is chemically known as_____________________?

    A. Polyvinyl chloride (PVC)
    B. Polybutadiene
    C. Phenol formaldehyde
    D. Polyurethane