Aldehydes and Ketones - Result Question 16

####16. The number of aldol reaction(s) that occurs in the given transformation is

(2012)

(a) 1

(b) 2

(c) 3

(d) 4

Show Answer

Answer:

Correct Answer: 16. (b)

Solution:

  1. The given reaction is an example of repeated aldol condensation followed by Cannizzaro reaction.

Step I CH3CHO+OHCH2CHO+H2O

Step II HOCH2CH2CHO+HO

HOCH2CHCHO+H2O

HOOH+CHCH2OHCHO

Step III HOCH2CHCH2OHCHO+HO

HOCH2CCHO+H2OCH2OH

In the last step, formaldehyde is oxidised and the other aldehyde is reduced giving the desired products.



जेईई के लिए मॉक टेस्ट

एनसीईआरटी अध्याय वीडियो समाधान

दोहरा फलक