In permanent waving, most of the processing takes place within:
a. 5- 10 minutes
b. 10-20 minutes
c. 20-30 minutes
d. 45-60 minutes
Answer: 5- 10 minutes
Chemistry Chapter | Multiple Choice | Questions and Answers | Test Bank
a. 5- 10 minutes
b. 10-20 minutes
c. 20-30 minutes
d. 45-60 minutes
Answer: 5- 10 minutes