In the nucleophilic addition of CN- to carbonyl carbon, the intermediate formed is
Tetrahedral
Planar
Cyclic
Pyramidal
With addition of CN- to carbonyl carbon, hybridisation changes from sp2(planar) to sp3 (tetrahedral).
In the nucleophilic addition of CN-1 to carbonyl compound the intermediate formed is
The most characteristic reaction of aldehyde and ketones is nucleophilic addition to carbon oxygen double bond. Aldehyde and ketones are easily susceptible to nucleophilic addition because of structural features. The trigonal planar arrangement of groups around the carbonyl carbon atom means that the carbonyl carbon atom is relatively open to attack from above and below the plane of carbonyl group. The partial positive charge on the carbonyl atom means that it is especially susceptible to attack by a nucleophile
Oximes are formed by the reaction of aldehyde or ketones with