Main constituent of limestone is____________________?

Related Mcqs:

1. Production of one ton of cement requires about _______________ tons of limestone ?

   A. 0.6
   B. 1.2
   C. 2.2
   D. 3.8

2. Calcination of limestone is not done in a ______________ kiln for producing lime ?

   A. Vertical shaft
   B. Rotary
   C. Fluidised bed
   D. Fixed bed

3. 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

4. Fusion of limestone and ______________ produces high alumina cement?

   A. Sand
   B. Bauxite
   C. Quicklime
   D. Calcite

5. Commercial production of calcium carbide requires limestone and __________________ as raw materials?

   A. Coke
   B. Sand
   C. Soda ash
   D. Fuel oil

6. Main constituents of natural rubber is____________________?

   A. Polystyrene
   B. Polyisoprene
   C. Polybutadiene
   D. Polychlorophrene

7. ________________ acid is the main constituent of cotton seed oil ?

   A. Acetic
   B. Linoleic
   C. Palmitic
   D. Oleic

8. Main constituent of dolomite is __________________?

   A. CaCO3
   B. MgCO3
   C. K2CO3
   D. Na2CO3

9. Which of the following has sodium bicarbonate as its main constituent ?

   A. Baking soda
   B. Baking powder
   C. Washing soda
   D. None of these

10. Which of the following is the main constituent of the mother liquor produced in salt industry ?

    A. Quick lime
    B. Glauber’s salt
    C. Salt petre
    D. Bromine