A) carbon is bounded by 3 methyl groups
B) absence of a-hydrogen atom
C) due to steric effect
D) none of the above
Correct Answer: B
Solution :
Aldehydes that have no a-hydrogen atom give Cannizaro reaction, in which two molecule of aldehyde in presence of 50% aqueous\[NaOH,\] gives one molecule of alcohol and one molecule of sodium salt of acid. \[2C{{H}_{3}}-\underset{\begin{smallmatrix} | \\ C{{H}_{3}} \end{smallmatrix}}{\overset{\begin{smallmatrix} C{{H}_{3}} \\ | \end{smallmatrix}}{\mathop{C}}}\,-COH+NaOH\xrightarrow{\Delta }\] \[C{{H}_{3}}-\underset{\begin{smallmatrix} | \\ C{{H}_{3}} \end{smallmatrix}}{\overset{\begin{smallmatrix} C{{H}_{3}} \\ | \end{smallmatrix}}{\mathop{C}}}\,-C{{H}_{2}}OH+C{{H}_{3}}-\underset{\begin{smallmatrix} | \\ C{{H}_{3}} \end{smallmatrix}}{\overset{\begin{smallmatrix} C{{H}_{3}} \\ | \end{smallmatrix}}{\mathop{C}}}\,COO\]
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