Which electrophilic aromatic is most reactive?
Hence, the electron density on benzene ring is maximum in aniline. Hence, aniline is the most reactive towards electrophilic aromatic substitution.
Which compound reacts fastest in electrophilic aromatic substitution?
Lewis Acids Accelerate The Rate of Electrophilic Aromatic Substitution Reactions. The reaction of Cl2 with benzene is faster than toenail growth, but not by much [ref] (It is, however, much faster with more electron-rich aromatics such as toluene and phenol).
Which is least reactive towards aromatic electrophilic?
Benzenesulphonic acid is least reactive in an electrophilic aromatic substitution due to −M effect.
What increases rate of electrophilic aromatic substitution?
Experiments have shown that substituents on a benzene ring can influence reactivity in a profound manner. For example, a hydroxy or methoxy substituent increases the rate of electrophilic substitution about ten thousand fold, as illustrated by the case of anisole in the virtual demonstration (above).
Which is most reactive in electrophilic aromatic substitution Mcq?
The correct answer is Option B. Fuming sulphuric acid, H2S2O7, can be thought of as a solution of SO3 in sulphuric acid – and so is a much richer source of the SO3.
What is the order of reactivity of the following compounds in electrophilic substitution?
Ans 2>1>3>4.
Which gives the fastest rate of electrophilic?
Solution : Electrophilic substitution will be fastest at position due to hyperconjugation and + I effect of `-CH_(3)` group.
Which of the following undergoes electrophilic aromatic substitution faster than benzene?
Phenol will undergo electrophilic substitution more readily than benzene because electron in phenol is more than benzene.
Why is electrophilic substitution slow?
Halogen in haloarenes withdraws electrons through-I effect and release electrons through +R effect. The inductive effect is stronger than resonance effect and causes net electron withdrawl. As a result, the electrophilic substitution reactions in haloarness occur slowly.
What is the correct order of reactivity of the following towards electrophilic?
The decresing order of reactivity towards `SE` (substitution by electrophile) of the following is : (I) Nitrobenzene (II) Chlorobenzene (III) Toluene (IV) Benzene.
What is the correct order of reactivity in electrophilic substitution reaction?
What is the correct order of reactivity in electrophilic?
General order of reactivity towards electrophilic substitution reaction: Aniline > Phenol > Anisole > Acetanilide > Toluene > Chlorobenzene > Fluorobenzene > Benzoic acid > Benzaldehyde > Nitrobenzene.
What is the correct increasing order of reactivity of the following compound towards electrophilic aromatic substitution reaction?
Based on the above explanation we conclude that the increasing order of reactivity of the following compounds towards aromatic electrophilic substitution reaction is: D < A < C < B. Therefore, the correct answer is option (B).
Which compound reacts fastest in aromatic nucleophilic?
Therefore, p−chloro nitrobenzene has the highest reactivity.
Which of the following undergoes electrophilic substitution reaction slower than benzene?
Due to presence of electron withdrawing group, nitrobenzene reacts slower than benzene in electrophilic reactions.
Why are electrophilic substitution reactions of benzene slow?
There are delocalised electrons above and below the plane of the ring. The presence of the delocalised electrons makes benzene particularly stable. Benzene resists addition reactions because that would involve breaking the delocalisation and losing that stability.