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

Question: 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

Answer: Option B

Explanation:

No answer description available for this question.