In which of the following compounds is deoxyg | vedclass

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(C) When phenols are heated with zinc dust,they undergo reduction (deoxygenation) to form the corresponding aromatic hydrocarbon. Compound $A$ is benz

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$B$ and $D$

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(C) When phenols are heated with zinc dust,they undergo reduction (deoxygenation) to form the corresponding aromatic hydrocarbon. Compound $A$ is benzyl alcohol,which does not undergo deoxygenation with $Zn$ dust. Compound $B$ is $o$-cresol ($2$-methylphenol),which contains a phenolic $-OH$ group and is reduced to toluene. Compound $C$ is $2$-methylbenzyl alcohol,which does not contain a phenolic $-OH$ group and thus does not undergo deoxygenation with $Zn$ dust. Compound $D$ is salicylic acid ($2$-hydroxybenzoic acid),which contains a phenolic $-OH$ group and is reduced to benzoic acid. Therefore,compounds $B$ and $D$ undergo deoxygenation when heated with $Zn$ dust.

In which of the following compounds is deoxygenation possible when heated with $Zn$ dust?

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