which-of-the-following-reagents-can-be-used-to-oxidize-phenol-to-quinone

Question

Which of the following reagents can be used to oxidize phenol to quinone?

Accepted Answer

Dichromate $$(Cr2O7^2-)$$

Answer

Palladium on carbon (Pd/C)

Answer

Lithium aluminum hydride (LiAlH4)

Answer

Sodium borohydride (NaBH4)