JEE Exam  >  JEE Questions  >  In nucleophilic substitution reactions, the r... Start Learning for Free
In nucleophilic substitution reactions, the reactivity of carbonyl compounds follows the order
  • a)
    H₂C═O>R₂C═O>Ar₂C═O>RCHO>ArCHO
  • b)
    H₂C═O>RCHO>ArCHO>R₂C═O>Ar₂C═0
  • c)
    Ar₂C═O>R₂C═O>ArCHO>RCHO>H₂C═O
  • d)
    ArCHO>Ar₂C═O>RCHO>R₂C═O>H₂C═0
Correct answer is option 'B'. Can you explain this answer?
Most Upvoted Answer
In nucleophilic substitution reactions, the reactivity of carbonyl com...
Reactivity of Carbonyl Compounds in Nucleophilic Substitution Reactions
In nucleophilic substitution reactions, the reactivity of carbonyl compounds is determined by their structure and the nature of the substituents attached to the carbonyl group. The reactivity follows a specific order based on the type of carbonyl compound.

Order of Reactivity:
- HCO > RCHO > ArCHO > RCO > ArCO

Explanation:
1. HCO (Formaldehyde): Formaldehyde is the most reactive carbonyl compound in nucleophilic substitution reactions due to the absence of any stabilizing groups. The electron-withdrawing effect of substituents decreases reactivity.
2. RCHO (Aldehydes): Aldehydes are less reactive than formaldehyde but more reactive than ketones. The presence of an alkyl group in aldehydes provides some steric hindrance, reducing reactivity compared to formaldehyde.
3. ArCHO (Aromatic Aldehydes): Aromatic aldehydes are less reactive than aliphatic aldehydes due to the resonance stabilization provided by the aromatic ring. This stabilization decreases the electrophilicity of the carbonyl carbon.
4. RCO (Ketones): Ketones are less reactive than aldehydes due to the presence of two alkyl groups that increase steric hindrance around the carbonyl carbon. This hindrance reduces the accessibility of the nucleophile to the electrophilic center.
5. ArCO (Aromatic Ketones): Aromatic ketones are the least reactive among the carbonyl compounds in nucleophilic substitution reactions. The aromatic ring provides significant resonance stabilization, decreasing the reactivity of the carbonyl group.
Therefore, the reactivity of carbonyl compounds in nucleophilic substitution reactions follows the order mentioned above, with formaldehyde being the most reactive and aromatic ketones being the least reactive.
Explore Courses for JEE exam
In nucleophilic substitution reactions, the reactivity of carbonyl compounds follows the ordera)HCO>RCO>ArCO>RCHO>ArCHOb)HCO>RCHO>ArCHO>RCO>ArC0c)ArCO>RCO>ArCHO>RCHO>HCOd)ArCHO>ArCO>RCHO>RCO>HC0Correct answer is option 'B'. Can you explain this answer?
Question Description
In nucleophilic substitution reactions, the reactivity of carbonyl compounds follows the ordera)HCO>RCO>ArCO>RCHO>ArCHOb)HCO>RCHO>ArCHO>RCO>ArC0c)ArCO>RCO>ArCHO>RCHO>HCOd)ArCHO>ArCO>RCHO>RCO>HC0Correct answer is option 'B'. Can you explain this answer? for JEE 2024 is part of JEE preparation. The Question and answers have been prepared according to the JEE exam syllabus. Information about In nucleophilic substitution reactions, the reactivity of carbonyl compounds follows the ordera)HCO>RCO>ArCO>RCHO>ArCHOb)HCO>RCHO>ArCHO>RCO>ArC0c)ArCO>RCO>ArCHO>RCHO>HCOd)ArCHO>ArCO>RCHO>RCO>HC0Correct answer is option 'B'. Can you explain this answer? covers all topics & solutions for JEE 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for In nucleophilic substitution reactions, the reactivity of carbonyl compounds follows the ordera)HCO>RCO>ArCO>RCHO>ArCHOb)HCO>RCHO>ArCHO>RCO>ArC0c)ArCO>RCO>ArCHO>RCHO>HCOd)ArCHO>ArCO>RCHO>RCO>HC0Correct answer is option 'B'. Can you explain this answer?.
Solutions for In nucleophilic substitution reactions, the reactivity of carbonyl compounds follows the ordera)HCO>RCO>ArCO>RCHO>ArCHOb)HCO>RCHO>ArCHO>RCO>ArC0c)ArCO>RCO>ArCHO>RCHO>HCOd)ArCHO>ArCO>RCHO>RCO>HC0Correct answer is option 'B'. Can you explain this answer? in English & in Hindi are available as part of our courses for JEE. Download more important topics, notes, lectures and mock test series for JEE Exam by signing up for free.
Here you can find the meaning of In nucleophilic substitution reactions, the reactivity of carbonyl compounds follows the ordera)HCO>RCO>ArCO>RCHO>ArCHOb)HCO>RCHO>ArCHO>RCO>ArC0c)ArCO>RCO>ArCHO>RCHO>HCOd)ArCHO>ArCO>RCHO>RCO>HC0Correct answer is option 'B'. Can you explain this answer? defined & explained in the simplest way possible. Besides giving the explanation of In nucleophilic substitution reactions, the reactivity of carbonyl compounds follows the ordera)HCO>RCO>ArCO>RCHO>ArCHOb)HCO>RCHO>ArCHO>RCO>ArC0c)ArCO>RCO>ArCHO>RCHO>HCOd)ArCHO>ArCO>RCHO>RCO>HC0Correct answer is option 'B'. Can you explain this answer?, a detailed solution for In nucleophilic substitution reactions, the reactivity of carbonyl compounds follows the ordera)HCO>RCO>ArCO>RCHO>ArCHOb)HCO>RCHO>ArCHO>RCO>ArC0c)ArCO>RCO>ArCHO>RCHO>HCOd)ArCHO>ArCO>RCHO>RCO>HC0Correct answer is option 'B'. Can you explain this answer? has been provided alongside types of In nucleophilic substitution reactions, the reactivity of carbonyl compounds follows the ordera)HCO>RCO>ArCO>RCHO>ArCHOb)HCO>RCHO>ArCHO>RCO>ArC0c)ArCO>RCO>ArCHO>RCHO>HCOd)ArCHO>ArCO>RCHO>RCO>HC0Correct answer is option 'B'. Can you explain this answer? theory, EduRev gives you an ample number of questions to practice In nucleophilic substitution reactions, the reactivity of carbonyl compounds follows the ordera)HCO>RCO>ArCO>RCHO>ArCHOb)HCO>RCHO>ArCHO>RCO>ArC0c)ArCO>RCO>ArCHO>RCHO>HCOd)ArCHO>ArCO>RCHO>RCO>HC0Correct answer is option 'B'. Can you explain this answer? tests, examples and also practice JEE tests.
Explore Courses for JEE exam

Top Courses for JEE

Explore Courses
Signup for Free!
Signup to see your scores go up within 7 days! Learn & Practice with 1000+ FREE Notes, Videos & Tests.
10M+ students study on EduRev