SO2 is bubbled through hot sugar cane juice to_______________?

Related Mcqs:

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

   A. Flocculate the impurities
   B. Facilitate fast filtration
   C. Both A. and B.
   D. Neither A. nor B.

2. 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

3. 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

4. In multistage equilibrium conversion of SO2 to SO3 (2SO2 + O2 ⇌ 2SO3), the reverse reaction becomes appreciable at a temperature of 550° C. The percentage equilibrium conversion of SO2 to SO3 can be increased by ?

   A. Increasing the oxygen concentration
   B. Putting more quantity of V2O5 catalyst in the converter
   C. Removing some quantity of SO3 during intermediate stage
   D. Maintaining low temperature & pressure in the converter

5. 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

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

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

7. At a given temperature, the equilibrium yield of SO3 obtained from the oxidation of SO2 is proportional to (where, P = pressure of the system) ?

   A. P
   B. √P
   C. P2
   D. 1/P

8. Oxidation of SO2 to SO3 is favoured by______________________?

   A. Low temperature and low pressure
   B. Low temperature and high pressure
   C. High temperature and low pressure
   D. High temperature and high pressure

9. Conversion of SO2 to SO3 in Monsanto 4-pass converter is about ____________________ percent?

   A. 80
   B. 90
   C. 98
   D. 100

10. Wood charcoal is used for decolouration of sugar, because it _______________ the coloured materials?

    A. Adsorbs
    B. Oxidises
    C. Reduces
    D. Converts