1) The most suitable reagent for the conversion of $R-CH_{2}-OH\rightarrow R-CHO $ is A) $KMnO_{4}$ B) $K_{2}Cr_{2}O_{7}$ C) $CrO_{3}$ D) PCC (pyridinium chlorochromate) Answer: Option DExplanation:$R-CH_{2}OH$ $\underrightarrow{PCC}$ $R-CH=O$ Pyridinium chlorochromate is the mild oxidising agent which causes conversion of alcohol to aldehyde stage. While others causes conversion of alcohol to acid
