A-Level CAIE Chemistry A2 34.2.4—About azo compounds Question Bank

• Recall the following about azo compounds:

- (a) describe the coupling of benzenediazonium chloride with phenol in NaOH(aq) to form an azo compound

- (b) identify the azo group

- (c) state that azo compounds are often used as dyes

- (d) that other azo dyes can be formed via a similar route