Phthalic anhydride is made by the ______________________?

Related Mcqs:

1. Phthalic anhydride is used____________________?

   A. In making PVC
   B. As plasticisers
   C. In insecticides manufacture
   D. For making nylon-6

2. Manufacture of phthalic anhydride uses ______________ as a catalyst ?

   A. Ni
   B. Cr
   C. V2O5
   D. Al2O3

3. Oxidation of ortho-xylene in presence of ______________ catalyst is done to produce phthalic anhydride on commercial scale ?

   A. Nickel
   B. Vanadium
   C. Alumina
   D. Iron

4. Phthalic anhydride is produced by the oxidation of _________________?

   A. Naphthalene
   B. Benzene
   C. Toluene
   D. Aniline

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

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

6. Maleic anhydride is produced by catalytic oxidation of____________________?

   A. Toluene
   B. Ethyl alcohol
   C. Naphthalene
   D. Benzene

7. Starting raw material for the manufacture of Maleic anhydride is___________________?

   A. n-butene
   B. Benzene
   C. Either A. or B.
   D. Neither A. nor B.

8. Commercially ethylene is produced from naphtha by ______________________?

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

9. 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

10. A good quality coal should have ______________________?

    A. Low fusion point of ash
    B. High ash content
    C. High sulphur content
    D. None of these