Home
Class 12
CHEMISTRY
When a nucleophile encounters a ketone ,...

When a nucleophile encounters a ketone , the site of attack is :

A

the carbon atom of the carbonyl

B

the oxygen atom of the carbonyl

C

both the carbon and oxygen atoms , with equal probability

D

no attack occurs as ketones do not react with nucleophiles

Text Solution

Verified by Experts

The correct Answer is:
A
(a) `R-underset(deltao+)overset(O)overset(||)(C)-R` more positive on carbon of carbonyl.
Promotional Banner

Topper's Solved these Questions

  • ALDEHYDES AND KETONES

    MS CHOUHAN|Exercise Level 1 (Q.121 To Q.150)|1 Videos

  • ALDEHYDES AND KETONES

    MS CHOUHAN|Exercise Level 2|7 Videos

  • ALCOHOLS FROM CARBONYL COMPOUNDS

    MS CHOUHAN|Exercise Additional Objective Questions (Multiple Correct Choice Type )|1 Videos

  • ALDEHYDES AND KETONES I. NUCLEOPHILIC ADDITION TO THE CARBONYL GROUP

    MS CHOUHAN|Exercise ADDITIONAL OBJECTIVE QUESTIONS (SINGLE CORRECT CHOICE TYPE)|17 Videos

Similar Questions

Explore conceptually related problems

Aldehydes and ketones are amphoteric. Thus they can act both as acids and bases. Under acidic conditions, the carbon of the protonated canbonyl group is much more electrophilic, reacting even with weak nucleopphilie. Carbonyl compound gives nucleophilic addition reaction. In this reaction the nucleophilic attack proceeds the elecrophilic attack. Which of these statements are correct?

Aldehydes and ketones are amphoteric. Thus they can act both as acids and bases. Under acidic conditions, the carbon of the protonated canbonyl group is much more electrophilic, reacting even with weak nucleopphilie. Carbonyl compound gives nucleophilic addition reaction. In this reaction the nucleophilic attack proceeds the elecrophilic attack. Which of the statements are//is correct?

Aldehydes and ketones are amphoteric. Thus they can act both as acids and bases. Under acidic conditions, the carbon of the protonated canbonyl group is much more electrophilic, reacting even with weak nucleopphilie. Carbonyl compound gives nucleophilic addition reaction. In this reaction the nucleophilic attack proceeds the elecrophilic attack. Which one of the carbonyl compounds is more reactive towards NaCN//H^(+) ?

Assertion: Aldehyde and keton ungergo nucleophilic addition reaction with carbon nucleophile and undergo nucleophilic addition-climination reaction with nitrogen Nucleophile. Reason : Addition of nuclephile on aldehyde and keton form retrahedral intermediate , in case of tertahedral intermediate of nitrogen nucleophile nonbonding molecule to eliminate while in case of carbon and hydrogen nucleophile nonbonding electron are not present.