Explain the relative resistance to bromination of benzene compared to phenol and compared to cyclohexene.

Within benzene the electrons within the pi-system are delocalised. This means the electrons are spread across the whole ring and has a lower electron density making it less susceptible to electrophilic attack. In comparison, phenol has an OH group which is partially delocalised into the benzene ring making it more electron dense than benzene and therefore more susceptible to electrophiles. Similarly, cyclohexene has three localised electrons in double bonds, meaning it also is more electron dense and like phenol can induce a dipole in Br2, unlike benzene. (includes diagrams in explanation)

Answered by Chemistry tutor

12117 Views

See similar Chemistry A Level tutors

Related Chemistry A Level answers

All answers ▸

A naturally occurring sample of the element boron has a relative atomic mass of 10.8 In this sample, boron exists as two isotopes. Calculate the percentage abundance of 10B in this naturally occurring sample of boron.


Rank the following compounds in acending order of melting point (and explain your reasoning): CH3CH2CH2NH2, CH3CH2CH3, CH3CH2CH2OH


Given the reaction: H2SO4 + NaOH --> ? + H2O. (a). Work out the salt produced (?) and (b). calculate the pH of the remaining solution when 1.2 g of NaOH and 4.41 g of H2SO4 were added in a 500 ml solution. Of the unreacted H2SO4 95% dissociated.


Describe how to perform a flame test to identify an unknown compound.


We're here to help

contact us iconContact ustelephone icon+44 (0) 203 773 6020
Facebook logoInstagram logoLinkedIn logo

MyTutor is part of the IXL family of brands:

© 2025 by IXL Learning