A. Boiling
B. Adding potassium permanganate
C. Adding sulphuric acid
D. Phenol-di-sulphuric acid
Correct Answer: Boiling ✔
Last Updated: August 25, 2020
A. Boiling
B. Adding potassium permanganate
C. Adding sulphuric acid
D. Phenol-di-sulphuric acid
Correct Answer: Boiling ✔
Last Updated: August 25, 2020