Here in nucleophilic addition of carbonyl group nucleophile ...nucleop.is more electronegative or weak electronegative plz tell ...pl check both pics

aldehydes and ketones have no leaving group

I think attacking nucleophilic is strong basic because if it is weak base or ( more electronegative ) then it might remove the another group present on carbonyl group which is example of reaction is acyl chlorides ,carboxylic etc

yes so addition reaction takes place

sir plz check this also

no both are different things, leaving group ability decided by the Basicity while nucleophilic decided by many factors so we can say

you need to remember both order separately. if you need i can send you these order

kr do send sir

sir but but addition of nucleophile in the carbonyl group is not done by leaving a group

there is formation of alcohol

I think attacking nucleophilic is strong basic because if it is weak base or ( more electronegative ) then it might remove the another group present on carbonyl group which is example of reaction is acyl chlorides ,carboxylic etc

In the first stage, there is a nucleophilic attack by the cyanide ion on the slightly positive carbon atom. The negative ion formed then picks up a hydrogen ion from somewhere - for example, from a hydrogen cyanide molecule to form cyanohydrin.

when nucleophile attack there is negative charge on oxygen atom and if again attacking nucleophile leaves then product is same as reactant

sir