Explanation
The most suitable reagent for conversion of 10 alcohol (R–CH2–OH) to aldehyde (R–CHO) is Pcc (pyridinium chloro chromate). Because Pcc is highly specific and mild oxidising agent. It can oxidise primary alcohols to aldehyde but not to carboxylic acids. Where as other acids via aldehyde.
Preparation of acetophenone from toluene is not easy, it can be done by step by step or multi step reaction . But from the given compounds , other than toluene we can prepare acetopheno easily.
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