A) rearrangement
B) oxidation
C) disproportionation
D) hone of the above
Correct Answer: C
Solution :
Key Idea: Define all terms to find correct answer. [a] Rearrangement reaction: The atoms within molecule change their position during rearrangement reaction. [b] Oxidation: Oxygen adds during oxidation reaction. [c] Disproportionation: During this reaction half of the molecules of some substance are oxidised and other half are reduced. \[\underset{benzaldehyde}{\mathop{{{C}_{6}}{{H}_{5}}CHO}}\,+NaOH\xrightarrow{{}}\underset{sodium\,\,benzoate}{\mathop{{{C}_{6}}{{H}_{5}}COONa}}\,\] \[\underset{benzyl\,\,alcohol}{\mathop{+{{C}_{6}}{{H}_{5}}C{{H}_{2}}OH}}\,\] \[\because \]Half of \[{{C}_{6}}{{H}_{5}}CHO\] molecules are oxidised to acid and other half of molecules are reduced to alcohol. \[\therefore \]It is disproportionation reaction.
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