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

Related Mcqs:

1. One of the steps during refining of cane sugar consists of addition of hydrated lime to the sugar syrup followed by carbonation of the resulting solution. The purpose of this step is to_________________?

   A. Adjust the pH of the syrup
   B. Remove the coloring matter from the syrup
   C. Reduce the viscosity of the syrup
   D. Improve the rate of crystallisation of sugar

2. SO2 is bubbled through hot sugar cane juice to_______________?

   A. Act as an acidifying agent
   B. Increase its concentration
   C. Increase the amount of molasses
   D. Increase the crystal size

3. Sucrose content in the raw juice extracted from sugar cane is about _________________ percent?

   A. 1 – 2
   B. 15 – 20
   C. 50 – 60
   D. 80 – 85

4. Sugar content in sugarcane on cane basis is about _______________ percent by weight ?

   A. 1 to 5
   B. 5 to 10
   C. 15 to 20
   D. 20 to 30

5. Sucrose content in cane sugar may be around ______________________ percent ?

   A. 50
   B. 70
   C. 95
   D. 80

6. Bromides contained in hot mother liquor is treated with ______________ during manufacture of bromine from sea water ?

   A. SO3
   B. Cl2
   C. NH3
   D. SO2

7. 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

8. Salt is added in the kettle during soap manufacture to separate ___________________?

   A. Soap from lye
   B. Glycerine from lye
   C. The metallic soap
   D. The unsaponified fat from soap

9. Rosin soap is added during paper manufacture to____________________?

   A. Impart adhesive properties
   B. Improve opacity
   C. Impart resistance to penetration by liquids
   D. None of these

10. Fluorescent dyes are added in detergents to__________________?

    A. Act as fabric brightener (by converting ultraviolet light to visible light) thereby improving the
    whiteness appearance of white fabrics
    B. Attain distinctiveness from other brands
    C. Act as tarnish inhibitor for metals like German silver
    D. None of these