Gypsum is chemically __________________ ?

Related Mcqs:

1. Baking soda is chemically represented by__________________?

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

2. Prussian blue is chemically represented by__________________?

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

3. 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

4. Salt cake is chemically represented by_________________?

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

5. Neoprene is chemically known as___________________?

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

6. Calgon used in water treatment is chemically ____________________?

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

7. Bakelite is chemically known as_____________________?

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

8. Calcination of gypsum produces__________________?

   A. Plaster of Paris
   B. Salt cake
   C. Nitre cake
   D. Lime

9. Glauber’s salt is chemically represented by____________________?

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

10. Washing soda is chemically represented by _________________?

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