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: (b).vanadium

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

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