Which is correct reactivity order towards electrophilic substitution reaction?

Therefore, the correct order of reactivity towards electrophilic substitution is Phenol > benzene > chlorobenzene > benzoic acid. Hence option B is the required answer.

Which of the following is more reactive towards Arsn?

Where as fluorine has no vacant d orbital that’s why fluorine shows +R effect . So the fluorine has highest reactivity towards electrophilic substitution reaction among all halogen .

Which Hello arrange is most reactive towards electrophilic substitution reaction?

Hence the correct reactivity order toward electrophilic substitution reaction is phenol>toluene>benene>nitrobenene.

What is order of Haloarenes towards SN reaction?

formed as an intermediate in step I (rate determining step). Greater the stability of carbocation, greater will be its ease of formation from alkyl halide and faster will be the rate’ of reaction. Thus, the order of reactivity of haloalkanes towards SN1 reaction is Tertiary halide > Secondary halide > Primary halide.

What is correct order of electrophilic addition of following alkene?

IV > III > I > II.

Which of the following is the reason for the low reactivity of Haloarenes towards electrophilic substitution reactions?

In haloarenes there is delocalisation of electrons due to resonance. The short bond length (1.69A0) imparts stability to aryl halides and the bond cleavage becomes rather difficult. The aryl halides are therefore less reactive than alkyl halides.

Which one of the following is most reactive towards electrophilic reaction?

Therefore, o-hydroxy toluene is most reactive towards electrophilic reagent.

What is the order of reactivity of the?

FBr>I.

What is the reactivity order of halogens towards substitution in alkanes?

The reactivity order of halogenation of alkanes is F2​>Cl2​>Br2​>I2​ .

Can haloarenes undergo electrophilic substitution reaction?

We know that haloarenes are electron-rich compounds. Therefore, they can undergo electrophilic substitution reaction and the attacking species, in this case, will be an electrophile. The +M effect will result in the concentration of electron density at ortho −and para −positions.

What is the Order of +M effect in halobenzene?

From the order of +M effect given above it turns out that the electron density in their respective halobenzene is of order Hence the reactivity towards electrophilic aromatic substitution follows the same order as given above :

Why does the instability of phenyl cation decrease the reactivity of haloarene?

Moreover, it cannot obtain stability by electronic displacement effects such as resonance. Additionally, an S N 1 reaction is not possible due to unstable carbocation. Therefore, instability of phenyl cation decreases the reactivity of the haloarene towards nucleophilic substitution reaction.

Why do electrons withdraw from the benzene ring in haloarene reactions?

This is because the halogen group present in haloarenes are deactivating because of the –I effect. Hence, electrons withdraw from the benzene ring. The reactions of haloarenes take place when haloarene react with chlorine in the presence of a solvent (say ferric chloride).