*/*_Manufacture of phthalic anhydride uses __________ as a catalyst.? – McqOptions

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1.	/_Manufacture of phthalic anhydride uses __________ as a catalyst.?
A.	Ni
B.	Cr
C.	V‚Äö√á√áO‚Äö√á√ñ
D.	Al‚Äö√á√áO‚Äö√á√â
Answer» D. Al‚Äö√á√áO‚Äö√á√â

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