— 0/, amine diazotised. 
— 0/, amine diazotisised. 
c) 
60 
20 40 
—> Time in minutes 
1. m-toluidine 
EKO a 
3. p- ” 
Fig. 2. 
20 40 
—> Time in minutes 
1. o-chloraniline 
2. p- ” 
3. m- 5 
