Manufacture of phthalic anhydride uses ______________ as a catalyst ?
Correct answer: C. V2O5
- A. Ni
- B. Cr
- C. V2O5
- D. Al2O3
Explanation
Phthalic anhydride is produced by catalytic oxidation of naphthalene or o-xylene using vanadium pentoxide, V2O5, generally supported on a carrier. The other listed materials are not the standard oxidation catalyst.
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