Question

Which of the following compounds is most reactive towards
nucleophilic addition reactions?

O
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(a) CH₃ —C—H
O
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(b) CH —C—CH

Answer 1

CH3CHO is the most reactive towards nucleophilic addition.

Explanation:

• Nucleophilic addition is the reaction between two compounds where there is a electropositive centre in the reactant where the electron rich reagent can attack and get added.

• Nucleophilic addition is mostly seen in carbonyl compounds because the oxygen is a very electronegative element and it can cause shift of electron cloud from the carbon to oxygen.

• This leads to the partially positive charge in carbon atom.

• In case of carbonyls, there are Aldehydes and ketones, both alkyl and aryl.

• The alkyl groups have inductive effect on the keto group and the aryl group has +R  effect on the carbonyl group.

• +R effect is more significant than +I effect.

• So here in option A, there is 1 alkyl group and on other side there's a hydrogen.

• In the rest of the compounds, there are either 2 alkyl groups, 2 aryl groups or their mixture.

• So ethanal will be most effective towards nucleophilic addition.

For more information about nucleophilic addition,

https://brainly.in/question/6663951

Why alkynes are more reactive than alkenes for nucleophilic addition reaction?

https://brainly.in/question/4891848

Explain why aldehydes undergo nucleophilic addition more readily than ketones.

Answer 2

Explanation:

Which of the following compounds is most reactive towards

nucleophilic addition reactions?

O

||

(a) CH₃ —C—H

O

||

(b) CH —C—CH✔️