Light oil whose major component is Benzol, is obtained by the distillation of crude tar in the temperature range of _____________ °C?

Related Mcqs:

1. Yield of pitch from distillation of high temperature tar is around _____________ percent?

   A. 10
   B. 25
   C. 65
   D. 90

2. Of the total tar present in raw coke oven gas, the tar recovered in primary cooler is about _______________ percent?

   A. 5
   B. 25
   C. 55
   D. 75

3. Tar yield in the low temperature and high temperature carbonisation of dry coal may be respectively ______________ percent?

   A. 3 & 10
   B. 10 & 3
   C. 10 & 20
   D. 15 & 8

4. Tar is a better fuel than furnace oil, because of its___________________?

   A. Higher calorific value
   B. Lower sulphur content
   C. Higher emissivity (0.8-0.9) resulting in higher radiation heat transfer rate
   D. Both A. and B.

5. Benzol is used_____________________?

   A. As a motor fuel blend
   B. For producing benzene, toluene & xylene by its distillation
   C. Both A. & B.
   D. Neither A. nor B.

6. Main constituents of Benzol are ____________________?

   A. Benzene, toluene & xylene
   B. Tar & creosote
   C. Ammonia & phenol
   D. Anthracene & phenol

7. Coal tar (produced by high temperature carbonisation) is the main source of_________________?

   A. Aromatic compounds
   B. Aliphatic compounds
   C. Paraffins
   D. Olefins

8. Coal tar (produced by high temperature carbonization) is the main source of_________?

   A. Aromatic compounds
   B. Aliphatic compounds
   C. Paraffins
   D. Olefins

   Submitted by: Muhammad Mutsadiq Umer

9. Wood charcoal is obtained by the destructive distillation of wood. It is used in the production of activated carbon, which is not used for the____________________?

   A. Decolourisation of sugar
   B. Solvent recovery from air and gases
   C. Absorption of gases and vapor
   D. Electrode manufacture

10. The ratio of % total carbon obtained in the ultimate analysis of coke and % fixed carbon obtained in the proximate analysis is always ___________________?

    A. 1
    B. < 1
    C. > 1
    D. Unpredictable