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Which of the following is an example of aldol condensation ?

Option: 1

2 CH3CHO \xrightarrow[]{dil. NaOH} CH3CH(OH)CH2CHO

Option: 2

2 HCHO \xrightarrow[]{dil. NaOH} CH3OH + HCOONa

Option: 3

C6H5CHO + HCHO \xrightarrow[]{dil. NaOH} C6H5CH2OH + HCOONa

Option: 4

C2H5COCH3 + NaOH + I2 \rightarrow C2H5CO2Na + CHI3

Answers (1)


The significance of Aldol condensation -

The product of aldol condensation on heating with dilute acid undergoes dehydration to form  \alpha ,\:\beta - unsaturated carbonyl compound.

 a \rightarrow aldol condensation

b, c \rightarrow Cannizzaro reaction

d \rightarrow haloform reaction

Therefore, the correct option is (1).

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