A) \[PC{{l}_{5}}\]
B) reduction
C) oxidation with potassium dichromate
D) ozonolysis
Correct Answer: C
Solution :
[c] In such reactions, first write down the sequence of reactions and then proceed backword/forward from a known compounds, reagent, or known fact (test). \[A\xrightarrow[(ii)\,{{H}_{2}}O]{(i)\,C{{H}_{3}}MgI}B\xrightarrow[{}]{Victor\,Meyer\,test}Blue\,colour\] Appearance of blue colour in Victor Meyer test indicates taht B is \[2{}^\circ \] alcohol and thus A must be an aldehyde other than HCHO. Thus among the given options, only option (c) is correct.
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