A good quality coal should have ______________________?

Related Mcqs:

1. ______________________ of quicklime produces slaked lime ?

   A. Hydration
   B. Dehydration
   C. Hydrogenation
   D. None of these

2. Sea water contains about ______________________ ppm of bromine ?

   A. 5
   B. 70
   C. 500
   D. 1700

3. Commercially ethylene is produced from naphtha by ______________________?

   A. Catalytic cracking
   B. Catalytic dehydrogenation
   C. Pyrolysis
   D. Hydrocracking

4. Molecular weight of plastics ranges from ______________________?

   A. 5000 to 10000
   B. 20000 to 250000
   C. 500 to 5000
   D. 106 to 109

5. Catalyst used in the oxidation of benzene to produce Maleic anhydride is ______________________?

   A. V2O5
   B. Pt
   C. Ni
   D. Cr

6. Percentage of alcohol in beer may be around ______________________ percent?

   A. 2-8
   B. 18-23
   C. 27-32
   D. 1-4

7. Function of thinner in a paint is to ______________________ ?

   A. Accelerate the oxidation of oil
   B. Prevent gelling of the paint
   C. Suspend pigments & dissolve film forming materials
   D. Form a protective film

8. Sodium salt of higher molecular weight fatty acid is termed as the ______________________ soap?

   A. Hard
   B. Soft
   C. Metallic
   D. Lubricating

9. Phthalic anhydride is made by the ______________________?

   A. Oxidation of naphthalene
   B. Oxidation of benzene
   C. Dehydrogenation of ethyl benzene
   D. None of these

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

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