Describe two nucleophilic addition reactions of carbonyl compounds.

Which of the following is the correct represetation for intermediate of nucleophilic addition reaction to the given carbonyl compound (A) ?

Which gives nucleophilic addition reaction?

Alkenes and carbonyl compounds both contain a pi bond but alkenes show electrophilic addition reactions whereas carbonyl compounds show nucleophilic addition reactions. Explain.

The correct order of reactivity for the nucleophilic addition reaction of the following carbonyl compounds with ethyl magnesium iodide is :

Ease of nucleophilic addition in the given compounds is

Ethanal is more reactive towards nucleophilic addition reaction than propanone. Why ?

Nucleophilic addition reaction will be most favoured in

Aldehyde and ketones are specially susceptible susceptible to nucleophile addition because carbonyl group (due to electronegatvity different between carbon and oxygen). Positive charge on carbon makes it reactive towards the nucleophile. This addition is catalysed by acid. Reactivity of carbonyl compound towards nucleophilic addition increases in the electron deficience at carbonyl carbon. Thus, (-I.E.) group increase while (+I.E.) groups decrease the reactivity of carbonyl compound

Carboxylic acids contain carbonyl group but do not show the nucleophilic addition reactions like aldehydes or ketones. Why?

Give nucleophilic addition reaction of acetaldehyde with HCN