The reaction of chloroform with acetone gives ...................

$2-$pentanone can be distinguished from $3-$pentanone by the reagent:

Arrange the following in the correct order of the rate of Nucleophilic Addition Reaction $(NAR)$:
$(I) \ HCHO$
$(II) \ CH_3CHO$
$(III) \ p-NO_2-C_6H_4CHO$
$(IV) \ p-CH_3-C_6H_4CHO$

When an oxime is treated with trifluoroperoxyacetic acid,it yields:

The reaction of acetaldehyde with conc. $KMnO_4$ gives

Which of the following reactions involve the carbon-carbon bond formation?