A) \[KMn{{O}_{4}}\]
B) \[{{K}_{2}}C{{r}_{2}}{{O}_{7}}\]
C) \[Cr\,{{O}_{3}}\]
D) \[PCC\text{ (}pyridinium\text{ }chlorochromate\text{)}\]
Correct Answer: D
Solution :
[d] PCC (pyridinium chloro chromate) A number of reagents used for oxidation of \[{{1}^{{}^\circ }}\]alcohol to aldehydes. Some of them are sarett reagent, Jone's reagent, collin's reagent, corcy's reagent, but PCC is more commonly and widely used. \[\underset{~{{1}^{{}^\circ }}alcohol}{\mathop{R-C{{H}_{2}}-OH}}\,\xrightarrow[(PCC)]{\operatorname{Re}\,agent}\underset{aldehyde}{\mathop{R-CH=O}}\,\]
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