Chemistry 9701 · AS & A Level · States of matter

States of matter — practice question

The structure of phenylethanoic acid is displayed.
(a)[1]

Give the count of distinct peaks in the carbon-13 ($^{13}$C) NMR spectrum of phenylethanoic acid.

(b)[4]

Phenylethanoic acid, ethanol and phenol can each act as acids. Compare their acidities and explain the relative order for these three compounds.

(c(i))[1]

Write an equation for the reaction of chloromethane with $\text{AlCl}_3$.

(c(ii))[3]

Draw the mechanism for the reaction of benzene with $\cdot\text{CH}_3$. Include every relevant curly arrow, charge and the intermediate structure.

(d(i))[1]

State the reagent and conditions for step 1.

(d(ii))[1]

Suggest the structure for compound Q.

(d(iii))[2]

State the reagents and conditions for steps 2 and 3.

(d(iv))[1]

Draw the structure of an organic by-product formed in step 1.

Worked solution & mark scheme

This 14-mark question has a full step-by-step worked solution and mark scheme. One marking point: total number of signals = 6

  • Full mark scheme, point by point
  • Step-by-step worked solution
  • Write your answer & get it marked instantly by AI