A base catalyzed reaction in carbonyl compounds increases the:
Correct answer: A. Nucleophilic character of the attacking reagent only
- A. Nucleophilic character of the attacking reagent only
- B. Electrophilic character of the carbonyl carbon atom only
- C. Electrophilic character of the attacking reagent only
- D. Nucleophilic character of the carbonyl carbon atom only
Explanation
A base-catalyzed reaction in a carbonyl compound increases the nucleophilic character of the attacking reagent only. Explanation: When a base is added to a carbonyl compound, it can abstract a proton from the carbonyl compound, leading to the formation of an enolate ion. The enolate ion is a nucleophile and can attack electrophilic reagents. The base does not affect the electrophilic character of the carbonyl carbon atom but instead increases the nucleophilic character of the attacking reagent, which can lead to the formation of a new bond.
Last updated
About Aldehydes and Ketones
Aldehydes and ketones contain the polar carbonyl group, but aldehydes are generally more readily oxidised and more reactive than ketones. Coverage includes preparation by oxidation or reduction routes, nucleophilic addition of reagents such as hydrogen cyanide and bisulfite, and tests that distinguish aldehydes from ketones.
Practise Aldehydes and Ketones
679 free Aldehydes and Ketones MCQs from Chemistry, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Exams that ask Chemistry questions like this
Chemistry is on 12 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.