Explain the reasons for the changes in reactivity of Phenol, Benzene and MethylBenzene
The changes in reactivity are due to the electron donating/withdrawing properties of the substituted groups. For example the OH group in Phenol is electron donating. This means the electron density of the delocalised ring will have increased, meaning it can polarise bonds more readily. MethylBenzene is less reactive as the Methyl group is electron withdrawing, this means the electron density of the delocalised ring will have decreased, hence decreasing the reactivity. This makes it less reactive than Benzene.
AD
Related Chemistry A Level answers
All answers ▸Molecules of hydrogen chloride, HCl, and molecules of fluorine, F2, contain the same number of electrons. Hydrogen chloride boils at –85 °C and fluorine boils at –188 °C. Explain why there is a difference in the boiling points of HCl and F2.
0.28 g of a gaseous hydrocarbon was turned in excess oxygen. 0.88 g of carbon dioxide and 0.36 g of water were formed. The volume of 0.28 g of the hydrocarbon at 1.01 x10^5 Pa and 298 k is 123 cm^3. Work out the molecular formula of the hydrocarbon.
Describe and explain the trend in reactivity of Group 2 elements with chlorine as the group is descended?
What chemical test can be used to differentiate between alkenes and alkanes. Describe and explain the results.