NEET levelSingle correct optionDifficulty 1 of 3co057
Which of the following undergoes the Cannizzaro reaction on heating with concentrated NaOH?
Apropanal
B2-methylpropanal
Cpropanone
D2,2-dimethylpropanal
Answer: D
Cannizzaro reaction needs an aldehyde with no alpha-hydrogen. (CHX3)X3CCHO has none. Propanal, 2-methylpropanal and propanone all have alpha-hydrogens and undergo aldol-type reactions instead.