Why is toluene faster than benzene?
There is no such structure in the intermediate for nitration of benzene, so the intermediate for toluene nitration is more stable and the reaction which goes through it is faster. We call the methy group (and alkyl groups in general) an “activating” group for electrophilic aromatic substitution.
Why is toluene more reactive than benzene?
A: Toluene is more reactive than benzene towards electrophilic substitution reaction. R: Presence of -CH, group increases the electron density at o/p positions in toluene and make the benzene ring more reactive towards Se reaction.
Why does toluene show resonance?
Toluene: Toluene undergoes resonance due to the hyperconjugation effect.
Does benzene have high resonance energy?
By comparing this value with the experimental value for benzene, we can conclude that benzene is 152 kJ or 36 kcal / mol more stable than the hypothetical system. This is the resonance energy for benzene.
Is toluene more reactive than phenol?
Note that the methyl group in toluene increases electron density only by hyperconjugation and inductive effect. Resonance effects are generally far more superior to hyperconjugation. Hence, without doubt, phenol is more activated towards EAS as compared to toluene.
Why is toluene more reactive than nitrobenzene?
It reduces the electron density of benzene group making it less prone to attack by an electrophile.
Why is toluene less reactive than phenol?
Toluene and Phenol are more reactive than benzene since their groups add electron density to the ring. Toluene’s methyl group adds electron density through the inductive effect, and the hydroxyl group in phenol can delocalise one of the lone pairs on the oxygen atom into the ring (demonstrated on the whiteboard).
Why toluene is readily nitrated than benzene?
Answer: Toluene has a methyl group on the benzene ring which is electron releasing group and hence activate the benzene ring by pushing the electrons on the benzene ring. The methyl group hence makes it around 25 times more reactive than benzene. Therefore it undergoes nitration easily than benzene.
Which of the following does not show resonance toluene benzene?
Answer: (c) Ethylamine does not show resonance.
Why is toluene more stable?
Toluene is a benzene ring with a methyl group attachment. It is more reactive than a regular benzene ring because the methyl group is electron-donating, making the ring have greater electron density.
Which has highest resonance energy?
Benzene
Benzene has resonance energy = 151 kJmol-1 whereas 1,3-butadiene and 1,3-cyclohexadiene have energy approx. 21 kJmol-1 and 1,3,5-hexatriene has 2 additional conjugated bonds and resonance energy= 42 kJmol-1.
Which has more resonance energy?
canonical structures are equivalent than if canonical structures are non-equivalent. Molecule is aromatic than if molecule is not aromatic.